1157757893 has 4 divisors (see below), whose sum is σ = 1158300288. Its totient is φ = 1157215500.

The previous prime is 1157757883. The next prime is 1157757901. The reversal of 1157757893 is 3987577511.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3987577511 = 17 ⋅234563383.

It is a cyclic number.

It is not a de Polignac number, because 1157757893 - 2⁶ = 1157757829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157757883) 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, 267983 + ... + 272268.

It is an arithmetic number, because the mean of its divisors is an integer number (289575072).

Almost surely, 2^1157757893 is an apocalyptic number.

It is an amenable number.

1157757893 is a deficient number, since it is larger than the sum of its proper divisors (542395).

1157757893 is an equidigital number, since it uses as much as digits as its factorization.

1157757893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542394.

The product of its digits is 1852200, while the sum is 53.

The square root of 1157757893 is about 34025.8415472711. The cubic root of 1157757893 is about 1050.0401777521.

The spelling of 1157757893 in words is "one billion, one hundred fifty-seven million, seven hundred fifty-seven thousand, eight hundred ninety-three".