131332744 has 8 divisors (see below), whose sum is σ = 246248910. Its totient is φ = 65666368.

The previous prime is 131332741. The next prime is 131332753. The reversal of 131332744 is 447233131.

It can be written as a sum of positive squares in only one way, i.e., 124768900 + 6563844 = 11170^2 + 2562^2 .

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

It is not an unprimeable number, because it can be changed into a prime (131332741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8208289 + ... + 8208304.

Almost surely, 2^131332744 is an apocalyptic number.

It is an amenable number.

131332744 is a deficient number, since it is larger than the sum of its proper divisors (114916166).

131332744 is a wasteful number, since it uses less digits than its factorization.

131332744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16416599 (or 16416595 counting only the distinct ones).

The product of its digits is 6048, while the sum is 28.

The square root of 131332744 is about 11460.0499126313. The cubic root of 131332744 is about 508.3049505130.

Adding to 131332744 its reverse (447233131), we get a palindrome (578565875).

The spelling of 131332744 in words is "one hundred thirty-one million, three hundred thirty-two thousand, seven hundred forty-four".