139657022 has 8 divisors (see below), whose sum is σ = 213942816. Its totient is φ = 68342752.

The previous prime is 139657019. The next prime is 139657027. The reversal of 139657022 is 220756931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139657027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742763 + ... + 742950.

It is an arithmetic number, because the mean of its divisors is an integer number (26742852).

Almost surely, 2^139657022 is an apocalyptic number.

139657022 is a deficient number, since it is larger than the sum of its proper divisors (74285794).

139657022 is a wasteful number, since it uses less digits than its factorization.

139657022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485762.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 139657022 is about 11817.6572128320. The cubic root of 139657022 is about 518.8250369608.

The spelling of 139657022 in words is "one hundred thirty-nine million, six hundred fifty-seven thousand, twenty-two".