139522122 has 16 divisors (see below), whose sum is σ = 310049280. Its totient is φ = 46507356.

The previous prime is 139522099. The next prime is 139522147. The reversal of 139522122 is 221225931.

It is a happy number.

139522122 is a `hidden beast` number, since 13 + 9 + 522 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291818 + ... + 1291925.

It is an arithmetic number, because the mean of its divisors is an integer number (19378080).

Almost surely, 2^139522122 is an apocalyptic number.

139522122 is an abundant number, since it is smaller than the sum of its proper divisors (170527158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139522122 is a wasteful number, since it uses less digits than its factorization.

139522122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583754 (or 2583748 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 139522122 is about 11811.9482728295. The cubic root of 139522122 is about 518.6579322358.

The spelling of 139522122 in words is "one hundred thirty-nine million, five hundred twenty-two thousand, one hundred twenty-two".