2091475213 has 2 divisors, whose sum is σ = 2091475214. Its totient is φ = 2091475212.

The previous prime is 2091475193. The next prime is 2091475223. The reversal of 2091475213 is 3125741902.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1493281449 + 598193764 = 38643^2 + 24458^2 .

It is a cyclic number.

It is not a de Polignac number, because 2091475213 - 2⁵ = 2091475181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2091475223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045737606 + 1045737607.

It is an arithmetic number, because the mean of its divisors is an integer number (1045737607).

Almost surely, 2^2091475213 is an apocalyptic number.

It is an amenable number.

2091475213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091475213 is an equidigital number, since it uses as much as digits as its factorization.

2091475213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 2091475213 is about 45732.6493109682. The cubic root of 2091475213 is about 1278.8440110499.

The spelling of 2091475213 in words is "two billion, ninety-one million, four hundred seventy-five thousand, two hundred thirteen".