137139890577 has 4 divisors (see below), whose sum is σ = 182853187440. Its totient is φ = 91426593716.

The previous prime is 137139890567. The next prime is 137139890593. The reversal of 137139890577 is 775098931731.

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.

It is a cyclic number.

It is not a de Polignac number, because 137139890577 - 2⁶ = 137139890513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137139890577.

It is not an unprimeable number, because it can be changed into a prime (137139890527) 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, 22856648427 + ... + 22856648432.

It is an arithmetic number, because the mean of its divisors is an integer number (45713296860).

Almost surely, 2^137139890577 is an apocalyptic number.

It is an amenable number.

137139890577 is a deficient number, since it is larger than the sum of its proper divisors (45713296863).

137139890577 is an equidigital number, since it uses as much as digits as its factorization.

137139890577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45713296862.

The product of its (nonzero) digits is 10001880, while the sum is 60.

The spelling of 137139890577 in words is "one hundred thirty-seven billion, one hundred thirty-nine million, eight hundred ninety thousand, five hundred seventy-seven".