137386369 has 4 divisors (see below), whose sum is σ = 142123860. Its totient is φ = 132648880.

The previous prime is 137386309. The next prime is 137386373. The reversal of 137386369 is 963683731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 963683731 = 73 ⋅13201147.

It can be written as a sum of positive squares in 2 ways, for example, as 110502144 + 26884225 = 10512^2 + 5185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137386369 is a prime.

It is a super-2 number, since 2×137386369² = 37750028774008322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137386309) 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, 2368702 + ... + 2368759.

It is an arithmetic number, because the mean of its divisors is an integer number (35530965).

Almost surely, 2^137386369 is an apocalyptic number.

It is an amenable number.

137386369 is a deficient number, since it is larger than the sum of its proper divisors (4737491).

137386369 is an equidigital number, since it uses as much as digits as its factorization.

137386369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4737490.

The product of its digits is 489888, while the sum is 46.

The square root of 137386369 is about 11721.1931559889. The cubic root of 137386369 is about 515.9978379113.

The spelling of 137386369 in words is "one hundred thirty-seven million, three hundred eighty-six thousand, three hundred sixty-nine".