137407169 has 2 divisors, whose sum is σ = 137407170. Its totient is φ = 137407168.

The previous prime is 137407163. The next prime is 137407177. The reversal of 137407169 is 961704731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131217025 + 6190144 = 11455^2 + 2488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137407169 is a prime.

It is a super-2 number, since 2×137407169² = 37761460185189122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (137407163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68703584 + 68703585.

It is an arithmetic number, because the mean of its divisors is an integer number (68703585).

Almost surely, 2^137407169 is an apocalyptic number.

It is an amenable number.

137407169 is a deficient number, since it is larger than the sum of its proper divisors (1).

137407169 is an equidigital number, since it uses as much as digits as its factorization.

137407169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 137407169 is about 11722.0804040921. The cubic root of 137407169 is about 516.0238769173.

The spelling of 137407169 in words is "one hundred thirty-seven million, four hundred seven thousand, one hundred sixty-nine".