2092090921 has 2 divisors, whose sum is σ = 2092090922. Its totient is φ = 2092090920.

The previous prime is 2092090909. The next prime is 2092090951. The reversal of 2092090921 is 1290902902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1637335296 + 454755625 = 40464^2 + 21325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2092090921 is a prime.

It is not a weakly prime, because it can be changed into another prime (2092090951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1046045460 + 1046045461.

It is an arithmetic number, because the mean of its divisors is an integer number (1046045461).

Almost surely, 2^2092090921 is an apocalyptic number.

It is an amenable number.

2092090921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2092090921 is an equidigital number, since it uses as much as digits as its factorization.

2092090921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 2092090921 is about 45739.3804177538. The cubic root of 2092090921 is about 1278.9694914173.

The spelling of 2092090921 in words is "two billion, ninety-two million, ninety thousand, nine hundred twenty-one".