131000224 has 24 divisors (see below), whose sum is σ = 258168708. Its totient is φ = 65433600.

The previous prime is 131000197. The next prime is 131000227. The reversal of 131000224 is 422000131.

It can be written as a sum of positive squares in 2 ways, for example, as 117072400 + 13927824 = 10820^2 + 3732^2 .

It is a super-2 number, since 2×131000224² = 34322117376100352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131000227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49954 + ... + 52510.

Almost surely, 2^131000224 is an apocalyptic number.

It is an amenable number.

131000224 is a deficient number, since it is larger than the sum of its proper divisors (127168484).

131000224 is a wasteful number, since it uses less digits than its factorization.

131000224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4168 (or 4160 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 131000224 is about 11445.5329277408. The cubic root of 131000224 is about 507.8755972891.

Adding to 131000224 its reverse (422000131), we get a palindrome (553000355).

The spelling of 131000224 in words is "one hundred thirty-one million, two hundred twenty-four", and thus it is an aban number.