1157553469 has 4 divisors (see below), whose sum is σ = 1159581280. Its totient is φ = 1155525660.

The previous prime is 1157553437. The next prime is 1157553479. The reversal of 1157553469 is 9643557511.

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 1157553469 - 2⁵ = 1157553437 is a prime.

It is a super-2 number, since 2×1157553469² = 2679860067187867922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157553479) 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, 1013049 + ... + 1014190.

It is an arithmetic number, because the mean of its divisors is an integer number (289895320).

Almost surely, 2^1157553469 is an apocalyptic number.

It is an amenable number.

1157553469 is a deficient number, since it is larger than the sum of its proper divisors (2027811).

1157553469 is an equidigital number, since it uses as much as digits as its factorization.

1157553469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027810.

The product of its digits is 567000, while the sum is 46.

The square root of 1157553469 is about 34022.8374625045. The cubic root of 1157553469 is about 1049.9783726460.

The spelling of 1157553469 in words is "one billion, one hundred fifty-seven million, five hundred fifty-three thousand, four hundred sixty-nine".