137274161 has 4 divisors (see below), whose sum is σ = 137324352. Its totient is φ = 137223972.

The previous prime is 137274149. The next prime is 137274227. The reversal of 137274161 is 161472731.

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, and also an emirpimes, since its reverse is a distinct semiprime: 161472731 = 7 ⋅23067533.

It is a cyclic number.

It is not a de Polignac number, because 137274161 - 2¹⁸ = 137012017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137274101) 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, 20741 + ... + 26546.

It is an arithmetic number, because the mean of its divisors is an integer number (34331088).

Almost surely, 2^137274161 is an apocalyptic number.

It is an amenable number.

137274161 is a deficient number, since it is larger than the sum of its proper divisors (50191).

137274161 is an equidigital number, since it uses as much as digits as its factorization.

137274161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50190.

The product of its digits is 7056, while the sum is 32.

The square root of 137274161 is about 11716.4056348353. The cubic root of 137274161 is about 515.8573221390.

The spelling of 137274161 in words is "one hundred thirty-seven million, two hundred seventy-four thousand, one hundred sixty-one".