131023734 has 32 divisors (see below), whose sum is σ = 283303680. Its totient is φ = 40256352.

The previous prime is 131023729. The next prime is 131023751. The reversal of 131023734 is 437320131.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11314 + ... + 19749.

It is an arithmetic number, because the mean of its divisors is an integer number (8853240).

Almost surely, 2^131023734 is an apocalyptic number.

131023734 is an abundant number, since it is smaller than the sum of its proper divisors (152279946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131023734 is a wasteful number, since it uses less digits than its factorization.

131023734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31124.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 131023734 is about 11446.5599199061. The cubic root of 131023734 is about 507.9059774944.

Adding to 131023734 its reverse (437320131), we get a palindrome (568343865).

It can be divided in two parts, 13102 and 3734, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 131023734 in words is "one hundred thirty-one million, twenty-three thousand, seven hundred thirty-four".