137904055 has 4 divisors (see below), whose sum is σ = 165484872. Its totient is φ = 110323240.

The previous prime is 137904049. The next prime is 137904073. The reversal of 137904055 is 550409731.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 137904055 - 2³ = 137904047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137904055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13790401 + ... + 13790410.

It is an arithmetic number, because the mean of its divisors is an integer number (41371218).

Almost surely, 2^137904055 is an apocalyptic number.

137904055 is a deficient number, since it is larger than the sum of its proper divisors (27580817).

137904055 is an equidigital number, since it uses as much as digits as its factorization.

137904055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27580816.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 137904055 is about 11743.2557240316. The cubic root of 137904055 is about 516.6451365754.

The spelling of 137904055 in words is "one hundred thirty-seven million, nine hundred four thousand, fifty-five".