131649237224 has 32 divisors (see below), whose sum is σ = 252645492000. Its totient is φ = 64277865792.

The previous prime is 131649237191. The next prime is 131649237229. The reversal of 131649237224 is 422732946131.

It is a happy number.

It is a Cunningham number, because it is equal to 362835²-1.

It is a super-2 number, since 2×131649237224² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131649237229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405982 + ... + 1496690.

It is an arithmetic number, because the mean of its divisors is an integer number (7895171625).

Almost surely, 2^131649237224 is an apocalyptic number.

It is an amenable number.

131649237224 is a deficient number, since it is larger than the sum of its proper divisors (120996254776).

131649237224 is a wasteful number, since it uses less digits than its factorization.

131649237224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94977 (or 94973 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The spelling of 131649237224 in words is "one hundred thirty-one billion, six hundred forty-nine million, two hundred thirty-seven thousand, two hundred twenty-four".