137415913 has 4 divisors (see below), whose sum is σ = 145499220. Its totient is φ = 129332608.

The previous prime is 137415907. The next prime is 137415919. The reversal of 137415913 is 319514731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319514731 = 397 ⋅804823.

It is an interprime number because it is at equal distance from previous prime (137415907) and next prime (137415919).

It can be written as a sum of positive squares in 2 ways, for example, as 126045529 + 11370384 = 11227^2 + 3372^2 .

It is a cyclic number.

It is not a de Polignac number, because 137415913 - 2⁵ = 137415881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137415919) 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, 4041628 + ... + 4041661.

It is an arithmetic number, because the mean of its divisors is an integer number (36374805).

Almost surely, 2^137415913 is an apocalyptic number.

It is an amenable number.

137415913 is a deficient number, since it is larger than the sum of its proper divisors (8083307).

137415913 is an equidigital number, since it uses as much as digits as its factorization.

137415913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8083306.

The product of its digits is 11340, while the sum is 34.

The square root of 137415913 is about 11722.4533694957. The cubic root of 137415913 is about 516.0348225302.

The spelling of 137415913 in words is "one hundred thirty-seven million, four hundred fifteen thousand, nine hundred thirteen".