139222557 has 40 divisors (see below), whose sum is σ = 222659360. Its totient is φ = 86430240.

The previous prime is 139222553. The next prime is 139222609. The reversal of 139222557 is 755222931.

139222557 is a `hidden beast` number, since 13 + 92 + 2 + 2 + 557 = 666.

It is not a de Polignac number, because 139222557 - 2² = 139222553 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

Its product of digits (37800) is a multiple of the sum of its prime factors (1575).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139222553) 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 39 ways as a sum of consecutive naturals, for example, 93138 + ... + 94620.

It is an arithmetic number, because the mean of its divisors is an integer number (5566484).

Almost surely, 2^139222557 is an apocalyptic number.

It is an amenable number.

139222557 is a deficient number, since it is larger than the sum of its proper divisors (83436803).

139222557 is a wasteful number, since it uses less digits than its factorization.

139222557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575 (or 1566 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 139222557 is about 11799.2608666814. The cubic root of 139222557 is about 518.2864664244.

The spelling of 139222557 in words is "one hundred thirty-nine million, two hundred twenty-two thousand, five hundred fifty-seven".