1400302313 has 4 divisors (see below), whose sum is σ = 1400588868. Its totient is φ = 1400015760.

The previous prime is 1400302297. The next prime is 1400302331. The reversal of 1400302313 is 3132030041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3132030041 = 7 ⋅447432863.

It can be written as a sum of positive squares in 2 ways, for example, as 948824809 + 451477504 = 30803^2 + 21248^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400302313 - 2⁴ = 1400302297 is a prime.

It is a super-3 number, since 3×1400302313³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1400302291 and 1400302300.

It is not an unprimeable number, because it can be changed into a prime (1400302513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135818 + ... + 145763.

It is an arithmetic number, because the mean of its divisors is an integer number (350147217).

Almost surely, 2^1400302313 is an apocalyptic number.

It is an amenable number.

1400302313 is a deficient number, since it is larger than the sum of its proper divisors (286555).

1400302313 is an equidigital number, since it uses as much as digits as its factorization.

1400302313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286554.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1400302313 is about 37420.6134770664. The cubic root of 1400302313 is about 1118.7694587171.

Adding to 1400302313 its reverse (3132030041), we get a palindrome (4532332354).

The spelling of 1400302313 in words is "one billion, four hundred million, three hundred two thousand, three hundred thirteen".