2091933251 has 2 divisors, whose sum is σ = 2091933252. Its totient is φ = 2091933250.

The previous prime is 2091933209. The next prime is 2091933253. The reversal of 2091933251 is 1523391902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2091933251 - 2²⁶ = 2024824387 is a prime.

Together with 2091933253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2091933253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045966625 + 1045966626.

It is an arithmetic number, because the mean of its divisors is an integer number (1045966626).

Almost surely, 2^2091933251 is an apocalyptic number.

2091933251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091933251 is an equidigital number, since it uses as much as digits as its factorization.

2091933251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 2091933251 is about 45737.6568158011. The cubic root of 2091933251 is about 1278.9373608530.

The spelling of 2091933251 in words is "two billion, ninety-one million, nine hundred thirty-three thousand, two hundred fifty-one".