1157112690 has 16 divisors (see below), whose sum is σ = 2777070528. Its totient is φ = 308563376.

The previous prime is 1157112689. The next prime is 1157112703. The reversal of 1157112690 is 962117511.

It is a super-2 number, since 2×1157112690² = 2677819554718072200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19285182 + ... + 19285241.

It is an arithmetic number, because the mean of its divisors is an integer number (173566908).

Almost surely, 2^1157112690 is an apocalyptic number.

1157112690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157112690 is an abundant number, since it is smaller than the sum of its proper divisors (1619957838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1157112690 is a wasteful number, since it uses less digits than its factorization.

1157112690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38570433.

The product of its (nonzero) digits is 3780, while the sum is 33.

The square root of 1157112690 is about 34016.3591526195. The cubic root of 1157112690 is about 1049.8450837208.

The spelling of 1157112690 in words is "one billion, one hundred fifty-seven million, one hundred twelve thousand, six hundred ninety".