2158901092 has 12 divisors (see below), whose sum is σ = 3780638316. Its totient is φ = 1078718720.

The previous prime is 2158901089. The next prime is 2158901117. The reversal of 2158901092 is 2901098512.

It can be written as a sum of positive squares in 2 ways, for example, as 1146770496 + 1012130596 = 33864^2 + 31814^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176293 + ... + 188140.

It is an arithmetic number, because the mean of its divisors is an integer number (315053193).

Almost surely, 2^2158901092 is an apocalyptic number.

It is an amenable number.

2158901092 is a deficient number, since it is larger than the sum of its proper divisors (1621737224).

2158901092 is a wasteful number, since it uses less digits than its factorization.

2158901092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365918 (or 365916 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 2158901092 is about 46463.9762827074. The cubic root of 2158901092 is about 1292.4415615075.

The spelling of 2158901092 in words is "two billion, one hundred fifty-eight million, nine hundred one thousand, ninety-two".