1045001657 has 4 divisors (see below), whose sum is σ = 1194287616. Its totient is φ = 895715700.

The previous prime is 1045001647. The next prime is 1045001663. The reversal of 1045001657 is 7561005401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1045001657 - 2¹⁴ = 1044985273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045001647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74642969 + ... + 74642982.

It is an arithmetic number, because the mean of its divisors is an integer number (298571904).

Almost surely, 2^1045001657 is an apocalyptic number.

It is an amenable number.

1045001657 is a deficient number, since it is larger than the sum of its proper divisors (149285959).

1045001657 is an equidigital number, since it uses as much as digits as its factorization.

1045001657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149285958.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1045001657 is about 32326.4853796388. The cubic root of 1045001657 is about 1014.7809979912.

The spelling of 1045001657 in words is "one billion, forty-five million, one thousand, six hundred fifty-seven".