2645001157 has 2 divisors, whose sum is σ = 2645001158. Its totient is φ = 2645001156.

The previous prime is 2645001131. The next prime is 2645001167. The reversal of 2645001157 is 7511005462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2476157121 + 168844036 = 49761^2 + 12994^2 .

It is a cyclic number.

It is not a de Polignac number, because 2645001157 - 2¹⁹ = 2644476869 is a prime.

It is a super-2 number, since 2×2645001157² = 13992062241062677298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2645001167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322500578 + 1322500579.

It is an arithmetic number, because the mean of its divisors is an integer number (1322500579).

Almost surely, 2^2645001157 is an apocalyptic number.

It is an amenable number.

2645001157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645001157 is an equidigital number, since it uses as much as digits as its factorization.

2645001157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 2645001157 is about 51429.5747308881. The cubic root of 2645001157 is about 1382.9568255767.

The spelling of 2645001157 in words is "two billion, six hundred forty-five million, one thousand, one hundred fifty-seven".