639114522 has 16 divisors (see below), whose sum is σ = 1281606240. Its totient is φ = 212475312.

The previous prime is 639114467. The next prime is 639114559. The reversal of 639114522 is 225411936.

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, 138253 + ... + 142800.

It is an arithmetic number, because the mean of its divisors is an integer number (80100390).

Almost surely, 2^639114522 is an apocalyptic number.

639114522 is an abundant number, since it is smaller than the sum of its proper divisors (642491718).

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

639114522 is a wasteful number, since it uses less digits than its factorization.

639114522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281437.

The product of its digits is 12960, while the sum is 33.

The square root of 639114522 is about 25280.7144281961. The cubic root of 639114522 is about 861.3762541367.

The spelling of 639114522 in words is "six hundred thirty-nine million, one hundred fourteen thousand, five hundred twenty-two".