131523332 has 6 divisors (see below), whose sum is σ = 230165838. Its totient is φ = 65761664.

The previous prime is 131523319. The next prime is 131523383. The reversal of 131523332 is 233325131.

It can be written as a sum of positive squares in only one way, i.e., 102535876 + 28987456 = 10126^2 + 5384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131523298 and 131523307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16440413 + ... + 16440420.

It is an arithmetic number, because the mean of its divisors is an integer number (38360973).

Almost surely, 2^131523332 is an apocalyptic number.

It is an amenable number.

131523332 is a deficient number, since it is larger than the sum of its proper divisors (98642506).

131523332 is a wasteful number, since it uses less digits than its factorization.

131523332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32880837 (or 32880835 counting only the distinct ones).

The product of its digits is 1620, while the sum is 23.

The square root of 131523332 is about 11468.3622196022. The cubic root of 131523332 is about 508.5507130361.

Adding to 131523332 its reverse (233325131), we get a palindrome (364848463).

The spelling of 131523332 in words is "one hundred thirty-one million, five hundred twenty-three thousand, three hundred thirty-two".