131125516 has 12 divisors (see below), whose sum is σ = 229671288. Its totient is φ = 65505152.

The previous prime is 131125487. The next prime is 131125529. The reversal of 131125516 is 615521131.

It is a happy number.

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, 9061 + ... + 18556.

It is an arithmetic number, because the mean of its divisors is an integer number (19139274).

Almost surely, 2^131125516 is an apocalyptic number.

It is an amenable number.

131125516 is a deficient number, since it is larger than the sum of its proper divisors (98545772).

131125516 is a wasteful number, since it uses less digits than its factorization.

131125516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28808 (or 28806 counting only the distinct ones).

The product of its digits is 900, while the sum is 25.

The square root of 131125516 is about 11451.0050213944. The cubic root of 131125516 is about 508.0374608124.

Adding to 131125516 its reverse (615521131), we get a palindrome (746646647).

The spelling of 131125516 in words is "one hundred thirty-one million, one hundred twenty-five thousand, five hundred sixteen".