8149312090 has 12 divisors (see below), whose sum is σ = 14669275626. Its totient is φ = 3259610648.

The previous prime is 8149312081. The next prime is 8149312103. The reversal of 8149312090 is 902139418.

It can be written as a sum of positive squares in only one way, i.e., 7334380881 + 814931209 = 85641^2 + 28547^2 .

It is a super-2 number, since 2×8149312090² (a number of 21 digits) contains 22 as substring.

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, 271197 + ... + 299743.

Almost surely, 2^8149312090 is an apocalyptic number.

8149312090 is a deficient number, since it is larger than the sum of its proper divisors (6519963536).

8149312090 is an frugal number, since it uses more digits than its factorization.

8149312090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57101 (or 28554 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 8149312090 is about 90273.5403648267. The cubic root of 8149312090 is about 2012.3660569009.

The spelling of 8149312090 in words is "eight billion, one hundred forty-nine million, three hundred twelve thousand, ninety".