1157911498 has 4 divisors (see below), whose sum is σ = 1736867250. Its totient is φ = 578955748.

The previous prime is 1157911457. The next prime is 1157911519. The reversal of 1157911498 is 8941197511.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1053197209 + 104714289 = 32453^2 + 10233^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289477873 + ... + 289477876.

Almost surely, 2^1157911498 is an apocalyptic number.

1157911498 is a deficient number, since it is larger than the sum of its proper divisors (578955752).

1157911498 is an equidigital number, since it uses as much as digits as its factorization.

1157911498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578955751.

The product of its digits is 90720, while the sum is 46.

The square root of 1157911498 is about 34028.0986539066. The cubic root of 1157911498 is about 1050.0866135656.

The spelling of 1157911498 in words is "one billion, one hundred fifty-seven million, nine hundred eleven thousand, four hundred ninety-eight".