402500113 has 8 divisors (see below), whose sum is σ = 404873640. Its totient is φ = 400133760.

The previous prime is 402500101. The next prime is 402500191. The reversal of 402500113 is 311005204.

It can be written as a sum of positive squares in 4 ways, for example, as 11370384 + 391129729 = 3372^2 + 19777^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402500113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402509113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142923 + ... + 145711.

It is an arithmetic number, because the mean of its divisors is an integer number (50609205).

Almost surely, 2^402500113 is an apocalyptic number.

It is an amenable number.

402500113 is a deficient number, since it is larger than the sum of its proper divisors (2373527).

402500113 is a wasteful number, since it uses less digits than its factorization.

402500113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 402500113 is about 20062.4054639517. The cubic root of 402500113 is about 738.3381950614.

Adding to 402500113 its reverse (311005204), we get a palindrome (713505317).

The spelling of 402500113 in words is "four hundred two million, five hundred thousand, one hundred thirteen".