2149007257 has 2 divisors, whose sum is σ = 2149007258. Its totient is φ = 2149007256.

The previous prime is 2149007177. The next prime is 2149007279. The reversal of 2149007257 is 7527009412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1806165001 + 342842256 = 42499^2 + 18516^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149007257 - 2⁷ = 2149007129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2149007297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074503628 + 1074503629.

It is an arithmetic number, because the mean of its divisors is an integer number (1074503629).

Almost surely, 2^2149007257 is an apocalyptic number.

It is an amenable number.

2149007257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149007257 is an equidigital number, since it uses as much as digits as its factorization.

2149007257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 2149007257 is about 46357.3862183795. The cubic root of 2149007257 is about 1290.4641994648.

The spelling of 2149007257 in words is "two billion, one hundred forty-nine million, seven thousand, two hundred fifty-seven".