137804775 has 12 divisors (see below), whose sum is σ = 227837352. Its totient is φ = 73495840.

The previous prime is 137804767. The next prime is 137804791. The reversal of 137804775 is 577408731.

It is a happy number.

It is not a de Polignac number, because 137804775 - 2³ = 137804767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 918624 + ... + 918773.

It is an arithmetic number, because the mean of its divisors is an integer number (18986446).

Almost surely, 2^137804775 is an apocalyptic number.

137804775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

137804775 is a deficient number, since it is larger than the sum of its proper divisors (90032577).

137804775 is a wasteful number, since it uses less digits than its factorization.

137804775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837410 (or 1837405 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 137804775 is about 11739.0278558320. The cubic root of 137804775 is about 516.5211256149.

The spelling of 137804775 in words is "one hundred thirty-seven million, eight hundred four thousand, seven hundred seventy-five".