202604421139 has 2 divisors, whose sum is σ = 202604421140. Its totient is φ = 202604421138.

The previous prime is 202604421109. The next prime is 202604421161. The reversal of 202604421139 is 931124406202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202604421139 - 2¹³ = 202604412947 is a prime.

It is not a weakly prime, because it can be changed into another prime (202604421109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101302210569 + 101302210570.

It is an arithmetic number, because the mean of its divisors is an integer number (101302210570).

Almost surely, 2^202604421139 is an apocalyptic number.

202604421139 is a deficient number, since it is larger than the sum of its proper divisors (1).

202604421139 is an equidigital number, since it uses as much as digits as its factorization.

202604421139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 202604421139 in words is "two hundred two billion, six hundred four million, four hundred twenty-one thousand, one hundred thirty-nine".