1157086443 has 4 divisors (see below), whose sum is σ = 1542781928. Its totient is φ = 771390960.

The previous prime is 1157086433. The next prime is 1157086471. The reversal of 1157086443 is 3446807511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1157086443 - 2¹⁸ = 1156824299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157086433) 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, 192847738 + ... + 192847743.

It is an arithmetic number, because the mean of its divisors is an integer number (385695482).

Almost surely, 2^1157086443 is an apocalyptic number.

1157086443 is a deficient number, since it is larger than the sum of its proper divisors (385695485).

1157086443 is an equidigital number, since it uses as much as digits as its factorization.

1157086443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385695484.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1157086443 is about 34015.9733507657. The cubic root of 1157086443 is about 1049.8371457178.

The spelling of 1157086443 in words is "one billion, one hundred fifty-seven million, eighty-six thousand, four hundred forty-three".