1657315133 has 4 divisors (see below), whose sum is σ = 1685405280. Its totient is φ = 1629224988.

The previous prime is 1657315111. The next prime is 1657315169. The reversal of 1657315133 is 3315137561.

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 1657315133 - 2⁸ = 1657314877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1657315093 and 1657315102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1657315333) 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 in 3 ways as a sum of consecutive naturals, for example, 14044985 + ... + 14045102.

It is an arithmetic number, because the mean of its divisors is an integer number (421351320).

Almost surely, 2^1657315133 is an apocalyptic number.

It is an amenable number.

1657315133 is a deficient number, since it is larger than the sum of its proper divisors (28090147).

1657315133 is an equidigital number, since it uses as much as digits as its factorization.

1657315133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28090146.

The product of its digits is 28350, while the sum is 35.

The square root of 1657315133 is about 40710.1355070209. The cubic root of 1657315133 is about 1183.4094472939.

The spelling of 1657315133 in words is "one billion, six hundred fifty-seven million, three hundred fifteen thousand, one hundred thirty-three".