137906017 has 4 divisors (see below), whose sum is σ = 138376980. Its totient is φ = 137435056.

The previous prime is 137905961. The next prime is 137906051. The reversal of 137906017 is 710609731.

It is a happy number.

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 133841761 + 4064256 = 11569^2 + 2016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137906017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137906317) 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, 235042 + ... + 235627.

It is an arithmetic number, because the mean of its divisors is an integer number (34594245).

Almost surely, 2^137906017 is an apocalyptic number.

It is an amenable number.

137906017 is a deficient number, since it is larger than the sum of its proper divisors (470963).

137906017 is an equidigital number, since it uses as much as digits as its factorization.

137906017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470962.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 137906017 is about 11743.3392610450. The cubic root of 137906017 is about 516.6475867159.

The spelling of 137906017 in words is "one hundred thirty-seven million, nine hundred six thousand, seventeen".