1045645157 has 2 divisors, whose sum is σ = 1045645158. Its totient is φ = 1045645156.

The previous prime is 1045645127. The next prime is 1045645169. The reversal of 1045645157 is 7515465401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 686125636 + 359519521 = 26194^2 + 18961^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045645157 - 2⁶ = 1045645093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1045645157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045645127) 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, 522822578 + 522822579.

It is an arithmetic number, because the mean of its divisors is an integer number (522822579).

Almost surely, 2^1045645157 is an apocalyptic number.

It is an amenable number.

1045645157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045645157 is an equidigital number, since it uses as much as digits as its factorization.

1045645157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 1045645157 is about 32336.4369867801. The cubic root of 1045645157 is about 1014.9892520722.

The spelling of 1045645157 in words is "one billion, forty-five million, six hundred forty-five thousand, one hundred fifty-seven".