131027144 has 16 divisors (see below), whose sum is σ = 251668620. Its totient is φ = 63915520.

The previous prime is 131027129. The next prime is 131027153. The reversal of 131027144 is 441720131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 129732100 + 1295044 = 11390^2 + 1138^2 .

It is a super-2 number, since 2×131027144² = 34336224929593472, which contains 22 as substring.

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, 199409 + ... + 200064.

Almost surely, 2^131027144 is an apocalyptic number.

It is an amenable number.

131027144 is a deficient number, since it is larger than the sum of its proper divisors (120641476).

131027144 is a wasteful number, since it uses less digits than its factorization.

131027144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399520 (or 399516 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 131027144 is about 11446.7088719859. The cubic root of 131027144 is about 507.9103836792.

Adding to 131027144 its reverse (441720131), we get a palindrome (572747275).

The spelling of 131027144 in words is "one hundred thirty-one million, twenty-seven thousand, one hundred forty-four".