807138522 has 12 divisors (see below), whose sum is σ = 1748800170. Its totient is φ = 269046168.

The previous prime is 807138463. The next prime is 807138533. The reversal of 807138522 is 225831708.

It can be written as a sum of positive squares in only one way, i.e., 800833401 + 6305121 = 28299^2 + 2511^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22420497 + ... + 22420532.

Almost surely, 2^807138522 is an apocalyptic number.

807138522 is an abundant number, since it is smaller than the sum of its proper divisors (941661648).

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

807138522 is a wasteful number, since it uses less digits than its factorization.

807138522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44841037 (or 44841034 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 807138522 is about 28410.1834207384. The cubic root of 807138522 is about 931.0707680710.

The spelling of 807138522 in words is "eight hundred seven million, one hundred thirty-eight thousand, five hundred twenty-two".