137505512 has 8 divisors (see below), whose sum is σ = 257822850. Its totient is φ = 68752752.

The previous prime is 137505509. The next prime is 137505517. The reversal of 137505512 is 215505731.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 136282276 + 1223236 = 11674^2 + 1106^2 .

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 (137505517) by changing a digit.

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 as a sum of consecutive naturals, namely, 8594087 + ... + 8594102.

Almost surely, 2^137505512 is an apocalyptic number.

It is an amenable number.

137505512 is a deficient number, since it is larger than the sum of its proper divisors (120317338).

137505512 is a wasteful number, since it uses less digits than its factorization.

137505512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17188195 (or 17188191 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 137505512 is about 11726.2744296729. The cubic root of 137505512 is about 516.1469545184.

The spelling of 137505512 in words is "one hundred thirty-seven million, five hundred five thousand, five hundred twelve".