131115044 has 12 divisors (see below), whose sum is σ = 229569564. Its totient is φ = 65523744.

The previous prime is 131115011. The next prime is 131115053. The reversal of 131115044 is 440511131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 105308644 + 25806400 = 10262^2 + 5080^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1622 + ... + 16274.

It is an arithmetic number, because the mean of its divisors is an integer number (19130797).

Almost surely, 2^131115044 is an apocalyptic number.

It is an amenable number.

131115044 is a deficient number, since it is larger than the sum of its proper divisors (98454520).

131115044 is a wasteful number, since it uses less digits than its factorization.

131115044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16894 (or 16892 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 131115044 is about 11450.5477598235. The cubic root of 131115044 is about 508.0239360867.

Adding to 131115044 its reverse (440511131), we get a palindrome (571626175).

The spelling of 131115044 in words is "one hundred thirty-one million, one hundred fifteen thousand, forty-four".