138750425 has 12 divisors (see below), whose sum is σ = 187691856. Its totient is φ = 100909200.

The previous prime is 138750419. The next prime is 138750457. The reversal of 138750425 is 524057831.

It is a happy number.

It is not a de Polignac number, because 138750425 - 2⁸ = 138750169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251999 + ... + 252548.

It is an arithmetic number, because the mean of its divisors is an integer number (15640988).

Almost surely, 2^138750425 is an apocalyptic number.

It is an amenable number.

138750425 is a deficient number, since it is larger than the sum of its proper divisors (48941431).

138750425 is a wasteful number, since it uses less digits than its factorization.

138750425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504568 (or 504563 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 138750425 is about 11779.2370296212. The cubic root of 138750425 is about 517.6999313056.

The spelling of 138750425 in words is "one hundred thirty-eight million, seven hundred fifty thousand, four hundred twenty-five".