137399354387 has 4 divisors (see below), whose sum is σ = 137411676216. Its totient is φ = 137387032560.

The previous prime is 137399354363. The next prime is 137399354423. The reversal of 137399354387 is 783453993731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137399354387 is a prime.

It is a super-2 number, since 2×137399354387² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137399354317) 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, 6144173 + ... + 6166494.

It is an arithmetic number, because the mean of its divisors is an integer number (34352919054).

Almost surely, 2^137399354387 is an apocalyptic number.

137399354387 is a deficient number, since it is larger than the sum of its proper divisors (12321829).

137399354387 is a wasteful number, since it uses less digits than its factorization.

137399354387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12321828.

The product of its digits is 51438240, while the sum is 62.

The spelling of 137399354387 in words is "one hundred thirty-seven billion, three hundred ninety-nine million, three hundred fifty-four thousand, three hundred eighty-seven".