137760427 has 8 divisors (see below), whose sum is σ = 157760000. Its totient is φ = 117840744.

The previous prime is 137760391. The next prime is 137760449. The reversal of 137760427 is 724067731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-137760427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137764427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16227 + ... + 23212.

It is an arithmetic number, because the mean of its divisors is an integer number (19720000).

Almost surely, 2^137760427 is an apocalyptic number.

137760427 is a deficient number, since it is larger than the sum of its proper divisors (19999573).

137760427 is an equidigital number, since it uses as much as digits as its factorization.

137760427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39945.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 137760427 is about 11737.1387910342. The cubic root of 137760427 is about 516.4657111428.

The spelling of 137760427 in words is "one hundred thirty-seven million, seven hundred sixty thousand, four hundred twenty-seven".