137605730 has 32 divisors (see below), whose sum is σ = 252419328. Its totient is φ = 54000000.

The previous prime is 137605723. The next prime is 137605747. The reversal of 137605730 is 37506731.

137605730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182855 + ... + 183605.

It is an arithmetic number, because the mean of its divisors is an integer number (7888104).

Almost surely, 2^137605730 is an apocalyptic number.

137605730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137605730 is a deficient number, since it is larger than the sum of its proper divisors (114813598).

137605730 is a wasteful number, since it uses less digits than its factorization.

137605730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082.

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 137605730 is about 11730.5468755723. The cubic root of 137605730 is about 516.2723183507.

The spelling of 137605730 in words is "one hundred thirty-seven million, six hundred five thousand, seven hundred thirty".