131045402 has 8 divisors (see below), whose sum is σ = 196904736. Its totient is φ = 65410492.

The previous prime is 131045377. The next prime is 131045417. The reversal of 131045402 is 204540131.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54638 + ... + 56985.

It is an arithmetic number, because the mean of its divisors is an integer number (24613092).

Almost surely, 2^131045402 is an apocalyptic number.

131045402 is a deficient number, since it is larger than the sum of its proper divisors (65859334).

131045402 is a wasteful number, since it uses less digits than its factorization.

131045402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112212.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 131045402 is about 11447.5063660170. The cubic root of 131045402 is about 507.9339742035.

Adding to 131045402 its reverse (204540131), we get a palindrome (335585533).

The spelling of 131045402 in words is "one hundred thirty-one million, forty-five thousand, four hundred two".