137025399 has 16 divisors (see below), whose sum is σ = 209018880. Its totient is φ = 78218400.

The previous prime is 137025353. The next prime is 137025407. The reversal of 137025399 is 993520731.

137025399 = 3122² + 3123² + ... + 3135².

It is not a de Polignac number, because 137025399 - 2⁹ = 137024887 is a prime.

It is a super-2 number, since 2×137025399² = 37551919942218402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137025349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21337 + ... + 27005.

It is an arithmetic number, because the mean of its divisors is an integer number (13063680).

Almost surely, 2^137025399 is an apocalyptic number.

137025399 is a deficient number, since it is larger than the sum of its proper divisors (71993481).

137025399 is a wasteful number, since it uses less digits than its factorization.

137025399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6830.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 137025399 is about 11705.7848519439. The cubic root of 137025399 is about 515.5455293206.

The spelling of 137025399 in words is "one hundred thirty-seven million, twenty-five thousand, three hundred ninety-nine".