3090156921 has 12 divisors (see below), whose sum is σ = 4572427860. Its totient is φ = 2009857920.

The previous prime is 3090156863. The next prime is 3090156931. The reversal of 3090156921 is 1296510903.

3090156921 is a `hidden beast` number, since 3 + 0 + 90 + 1 + 569 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1506992400 + 1583164521 = 38820^2 + 39789^2 .

It is not a de Polignac number, because 3090156921 - 2¹⁰ = 3090155897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3090156931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4186836 + ... + 4187573.

It is an arithmetic number, because the mean of its divisors is an integer number (381035655).

Almost surely, 2^3090156921 is an apocalyptic number.

It is an amenable number.

3090156921 is a deficient number, since it is larger than the sum of its proper divisors (1482270939).

3090156921 is a wasteful number, since it uses less digits than its factorization.

3090156921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8374456 (or 8374453 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 3090156921 is about 55589.1798914141. The cubic root of 3090156921 is about 1456.5548532420.

The spelling of 3090156921 in words is "three billion, ninety million, one hundred fifty-six thousand, nine hundred twenty-one".