137539737 has 6 divisors (see below), whose sum is σ = 198668522. Its totient is φ = 91693152.

The previous prime is 137539733. The next prime is 137539739. The reversal of 137539737 is 737935731.

It can be written as a sum of positive squares in only one way, i.e., 136048896 + 1490841 = 11664^2 + 1221^2 .

It is not a de Polignac number, because 137539737 - 2² = 137539733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137539692 and 137539701.

It is not an unprimeable number, because it can be changed into a prime (137539733) 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 in 5 ways as a sum of consecutive naturals, for example, 7641088 + ... + 7641105.

Almost surely, 2^137539737 is an apocalyptic number.

It is an amenable number.

137539737 is a deficient number, since it is larger than the sum of its proper divisors (61128785).

137539737 is a wasteful number, since it uses less digits than its factorization.

137539737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15282199 (or 15282196 counting only the distinct ones).

The product of its digits is 416745, while the sum is 45.

The square root of 137539737 is about 11727.7336685312. The cubic root of 137539737 is about 516.1897738058.

The spelling of 137539737 in words is "one hundred thirty-seven million, five hundred thirty-nine thousand, seven hundred thirty-seven".