131301224 has 8 divisors (see below), whose sum is σ = 246189810. Its totient is φ = 65650608.

The previous prime is 131301199. The next prime is 131301259. The reversal of 131301224 is 422103131.

It can be written as a sum of positive squares in only one way, i.e., 128097124 + 3204100 = 11318^2 + 1790^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×131301224² = 34480022847796352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8206319 + ... + 8206334.

Almost surely, 2^131301224 is an apocalyptic number.

It is an amenable number.

131301224 is a deficient number, since it is larger than the sum of its proper divisors (114888586).

131301224 is a wasteful number, since it uses less digits than its factorization.

131301224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16412659 (or 16412655 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131301224 is about 11458.6746179477. The cubic root of 131301224 is about 508.2642826808.

Adding to 131301224 its reverse (422103131), we get a palindrome (553404355).

The spelling of 131301224 in words is "one hundred thirty-one million, three hundred one thousand, two hundred twenty-four".