115137944 has 8 divisors (see below), whose sum is σ = 215883660. Its totient is φ = 57568968.

The previous prime is 115137943. The next prime is 115137949. The reversal of 115137944 is 449731511.

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

It is a super-2 number, since 2×115137944² = 26513492297094272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115137941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7196114 + ... + 7196129.

Almost surely, 2^115137944 is an apocalyptic number.

It is an amenable number.

115137944 is a deficient number, since it is larger than the sum of its proper divisors (100745716).

115137944 is a wasteful number, since it uses less digits than its factorization.

115137944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14392249 (or 14392245 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 115137944 is about 10730.2350393642. The cubic root of 115137944 is about 486.4887742477.

The spelling of 115137944 in words is "one hundred fifteen million, one hundred thirty-seven thousand, nine hundred forty-four".