131038402 has 24 divisors (see below), whose sum is σ = 227430000. Its totient is φ = 56426040.

The previous prime is 131038361. The next prime is 131038403. The reversal of 131038402 is 204830131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (131038403) 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 11 ways as a sum of consecutive naturals, for example, 9652 + ... + 18847.

It is an arithmetic number, because the mean of its divisors is an integer number (9476250).

Almost surely, 2^131038402 is an apocalyptic number.

131038402 is a deficient number, since it is larger than the sum of its proper divisors (96391598).

131038402 is a wasteful number, since it uses less digits than its factorization.

131038402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28542 (or 28531 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 131038402 is about 11447.2006184918. The cubic root of 131038402 is about 507.9249300069.

Adding to 131038402 its reverse (204830131), we get a palindrome (335868533).

The spelling of 131038402 in words is "one hundred thirty-one million, thirty-eight thousand, four hundred two".