137004399 has 32 divisors (see below), whose sum is σ = 242058240. Its totient is φ = 74882016.

The previous prime is 137004397. The next prime is 137004433. The reversal of 137004399 is 993400731.

It is not a de Polignac number, because 137004399 - 2¹ = 137004397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137004397) 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 31 ways as a sum of consecutive naturals, for example, 11412 + ... + 20105.

It is an arithmetic number, because the mean of its divisors is an integer number (7564320).

Almost surely, 2^137004399 is an apocalyptic number.

137004399 is a deficient number, since it is larger than the sum of its proper divisors (105053841).

137004399 is a wasteful number, since it uses less digits than its factorization.

137004399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31556 (or 31550 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 137004399 is about 11704.8878251780. The cubic root of 137004399 is about 515.5191911154.

The spelling of 137004399 in words is "one hundred thirty-seven million, four thousand, three hundred ninety-nine".