137408137 has 4 divisors (see below), whose sum is σ = 137462400. Its totient is φ = 137353876.

The previous prime is 137408129. The next prime is 137408147. The reversal of 137408137 is 731804731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137408137 - 2³ = 137408129 is a prime.

It is a super-2 number, since 2×137408137² = 37761992227621538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137408147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23137 + ... + 28462.

It is an arithmetic number, because the mean of its divisors is an integer number (34365600).

Almost surely, 2^137408137 is an apocalyptic number.

It is an amenable number.

137408137 is a deficient number, since it is larger than the sum of its proper divisors (54263).

137408137 is an equidigital number, since it uses as much as digits as its factorization.

137408137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54262.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 137408137 is about 11722.1216936184. The cubic root of 137408137 is about 516.0250886686.

The spelling of 137408137 in words is "one hundred thirty-seven million, four hundred eight thousand, one hundred thirty-seven".