2045162857 has 2 divisors, whose sum is σ = 2045162858. Its totient is φ = 2045162856.

The previous prime is 2045162851. The next prime is 2045162879. The reversal of 2045162857 is 7582615402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2023110441 + 22052416 = 44979^2 + 4696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2045162857 is a prime.

It is a super-2 number, since 2×2045162857² = 8365382223304804898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2045162851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022581428 + 1022581429.

It is an arithmetic number, because the mean of its divisors is an integer number (1022581429).

Almost surely, 2^2045162857 is an apocalyptic number.

It is an amenable number.

2045162857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045162857 is an equidigital number, since it uses as much as digits as its factorization.

2045162857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 2045162857 is about 45223.4768344938. The cubic root of 2045162857 is about 1269.3341534142.

The spelling of 2045162857 in words is "two billion, forty-five million, one hundred sixty-two thousand, eight hundred fifty-seven".