137985635 has 4 divisors (see below), whose sum is σ = 165582768. Its totient is φ = 110388504.

The previous prime is 137985593. The next prime is 137985637. The reversal of 137985635 is 536589731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 137985635 - 2⁶ = 137985571 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137985635.

It is not an unprimeable number, because it can be changed into a prime (137985637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13798559 + ... + 13798568.

It is an arithmetic number, because the mean of its divisors is an integer number (41395692).

Almost surely, 2^137985635 is an apocalyptic number.

137985635 is a deficient number, since it is larger than the sum of its proper divisors (27597133).

137985635 is an equidigital number, since it uses as much as digits as its factorization.

137985635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27597132.

The product of its digits is 680400, while the sum is 47.

The square root of 137985635 is about 11746.7286935555. The cubic root of 137985635 is about 516.7469938698.

The spelling of 137985635 in words is "one hundred thirty-seven million, nine hundred eighty-five thousand, six hundred thirty-five".