422179139 has 16 divisors (see below), whose sum is σ = 461415456. Its totient is φ = 384652800.

The previous prime is 422179057. The next prime is 422179141. The reversal of 422179139 is 931971224.

It is a cyclic number.

It is not a de Polignac number, because 422179139 - 2¹² = 422175043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422179159) 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, 131129 + ... + 134309.

It is an arithmetic number, because the mean of its divisors is an integer number (28838466).

Almost surely, 2^422179139 is an apocalyptic number.

422179139 is a deficient number, since it is larger than the sum of its proper divisors (39236317).

422179139 is a wasteful number, since it uses less digits than its factorization.

422179139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446.

The product of its digits is 27216, while the sum is 38.

The square root of 422179139 is about 20546.9982965882. The cubic root of 422179139 is about 750.1801872251.

The spelling of 422179139 in words is "four hundred twenty-two million, one hundred seventy-nine thousand, one hundred thirty-nine".