1157643355 has 8 divisors (see below), whose sum is σ = 1515460464. Its totient is φ = 841922400.

The previous prime is 1157643349. The next prime is 1157643359. The reversal of 1157643355 is 5533467511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1157643355 - 2²⁹ = 620772443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157643359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10523976 + ... + 10524085.

It is an arithmetic number, because the mean of its divisors is an integer number (189432558).

Almost surely, 2^1157643355 is an apocalyptic number.

1157643355 is a deficient number, since it is larger than the sum of its proper divisors (357817109).

1157643355 is a wasteful number, since it uses less digits than its factorization.

1157643355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21048077.

The product of its digits is 189000, while the sum is 40.

The square root of 1157643355 is about 34024.1584025233. The cubic root of 1157643355 is about 1050.0055494794.

The spelling of 1157643355 in words is "one billion, one hundred fifty-seven million, six hundred forty-three thousand, three hundred fifty-five".