1157817914 has 24 divisors (see below), whose sum is σ = 1939764672. Its totient is φ = 514023720.

The previous prime is 1157817893. The next prime is 1157817919. The reversal of 1157817914 is 4197187511.

It is a super-2 number, since 2×1157817914² = 2681084643958622792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157817919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26447 + ... + 54909.

It is an arithmetic number, because the mean of its divisors is an integer number (80823528).

Almost surely, 2^1157817914 is an apocalyptic number.

1157817914 is a deficient number, since it is larger than the sum of its proper divisors (781946758).

1157817914 is a wasteful number, since it uses less digits than its factorization.

1157817914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28562 (or 28519 counting only the distinct ones).

The product of its digits is 70560, while the sum is 44.

The square root of 1157817914 is about 34026.7235272513. The cubic root of 1157817914 is about 1050.0583229886.

It can be divided in two parts, 11578 and 17914, that added together give a palindrome (29492).

The spelling of 1157817914 in words is "one billion, one hundred fifty-seven million, eight hundred seventeen thousand, nine hundred fourteen".