140304413 has 4 divisors (see below), whose sum is σ = 140356380. Its totient is φ = 140252448.

The previous prime is 140304403. The next prime is 140304421. The reversal of 140304413 is 314403041.

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: 314403041 = 5879 ⋅53479.

It can be written as a sum of positive squares in 2 ways, for example, as 55995289 + 84309124 = 7483^2 + 9182^2 .

It is a cyclic number.

It is not a de Polignac number, because 140304413 - 2¹⁶ = 140238877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140304403) 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, 21698 + ... + 27411.

It is an arithmetic number, because the mean of its divisors is an integer number (35089095).

Almost surely, 2^140304413 is an apocalyptic number.

It is an amenable number.

140304413 is a deficient number, since it is larger than the sum of its proper divisors (51967).

140304413 is an equidigital number, since it uses as much as digits as its factorization.

140304413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51966.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 140304413 is about 11845.0163782073. The cubic root of 140304413 is about 519.6254860032.

Adding to 140304413 its reverse (314403041), we get a palindrome (454707454).

The spelling of 140304413 in words is "one hundred forty million, three hundred four thousand, four hundred thirteen".