1045351657 has 4 divisors (see below), whose sum is σ = 1194687616. Its totient is φ = 896015700.

The previous prime is 1045351649. The next prime is 1045351721. The reversal of 1045351657 is 7561535401.

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 1045351657 - 2³ = 1045351649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045351627) 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, 74667969 + ... + 74667982.

It is an arithmetic number, because the mean of its divisors is an integer number (298671904).

Almost surely, 2^1045351657 is an apocalyptic number.

It is an amenable number.

1045351657 is a deficient number, since it is larger than the sum of its proper divisors (149335959).

1045351657 is an equidigital number, since it uses as much as digits as its factorization.

1045351657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149335958.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 1045351657 is about 32331.8984441062. The cubic root of 1045351657 is about 1014.8942781000.

The spelling of 1045351657 in words is "one billion, forty-five million, three hundred fifty-one thousand, six hundred fifty-seven".