1400213 has 4 divisors (see below), whose sum is σ = 1419468. Its totient is φ = 1380960.

The previous prime is 1400197. The next prime is 1400249. The reversal of 1400213 is 3120041.

It is a happy number.

1400213 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3120041 = 307 ⋅10163.

It can be written as a sum of positive squares in 2 ways, for example, as 935089 + 465124 = 967^2 + 682^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400213 - 2⁴ = 1400197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1400194 and 1400203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9518 + ... + 9663.

It is an arithmetic number, because the mean of its divisors is an integer number (354867).

2^1400213 is an apocalyptic number.

It is an amenable number.

1400213 is a deficient number, since it is larger than the sum of its proper divisors (19255).

1400213 is an equidigital number, since it uses as much as digits as its factorization.

1400213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19254.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1400213 is about 1183.3059621248. The cubic root of 1400213 is about 111.8745672715.

Adding to 1400213 its reverse (3120041), we get a palindrome (4520254).

The spelling of 1400213 in words is "one million, four hundred thousand, two hundred thirteen".