2156973092 has 12 divisors (see below), whose sum is σ = 3813618060. Its totient is φ = 1067367936.

The previous prime is 2156973083. The next prime is 2156973109. The reversal of 2156973092 is 2903796512.

It can be written as a sum of positive squares in 2 ways, for example, as 778633216 + 1378339876 = 27904^2 + 37126^2 .

It is a super-2 number, since 2×2156973092² = 9305065839224080928, which contains 22 as substring.

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, 2779217 + ... + 2779992.

It is an arithmetic number, because the mean of its divisors is an integer number (317801505).

Almost surely, 2^2156973092 is an apocalyptic number.

It is an amenable number.

2156973092 is a deficient number, since it is larger than the sum of its proper divisors (1656644968).

2156973092 is a wasteful number, since it uses less digits than its factorization.

2156973092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559310 (or 5559308 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 2156973092 is about 46443.2243928003. The cubic root of 2156973092 is about 1292.0567099302.

The spelling of 2156973092 in words is "two billion, one hundred fifty-six million, nine hundred seventy-three thousand, ninety-two".