137737613 has 4 divisors (see below), whose sum is σ = 148332828. Its totient is φ = 127142400.

The previous prime is 137737609. The next prime is 137737637. The reversal of 137737613 is 316737731.

137737613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7823209 + 129914404 = 2797^2 + 11398^2 .

It is a cyclic number.

It is not a de Polignac number, because 137737613 - 2² = 137737609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137737603) 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, 5297588 + ... + 5297613.

It is an arithmetic number, because the mean of its divisors is an integer number (37083207).

Almost surely, 2^137737613 is an apocalyptic number.

137737613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

137737613 is a deficient number, since it is larger than the sum of its proper divisors (10595215).

137737613 is a wasteful number, since it uses less digits than its factorization.

137737613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10595214.

The product of its digits is 55566, while the sum is 38.

The square root of 137737613 is about 11736.1668785000. The cubic root of 137737613 is about 516.4371995703.

The spelling of 137737613 in words is "one hundred thirty-seven million, seven hundred thirty-seven thousand, six hundred thirteen".