1157113427 has 8 divisors (see below), whose sum is σ = 1200576000. Its totient is φ = 1113888384.

The previous prime is 1157113403. The next prime is 1157113429. The reversal of 1157113427 is 7243117511.

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

It is a cyclic number.

It is not a de Polignac number, because 1157113427 - 2⁸ = 1157113171 is a prime.

It is a super-2 number, since 2×1157113427² = 2677822965887368658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1157113393 and 1157113402.

It is not an unprimeable number, because it can be changed into a prime (1157113429) 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, 49427 + ... + 68972.

It is an arithmetic number, because the mean of its divisors is an integer number (150072000).

Almost surely, 2^1157113427 is an apocalyptic number.

1157113427 is a deficient number, since it is larger than the sum of its proper divisors (43462573).

1157113427 is a wasteful number, since it uses less digits than its factorization.

1157113427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118765.

The product of its digits is 5880, while the sum is 32.

The square root of 1157113427 is about 34016.3699856407. The cubic root of 1157113427 is about 1049.8453066135.

The spelling of 1157113427 in words is "one billion, one hundred fifty-seven million, one hundred thirteen thousand, four hundred twenty-seven".