1157105027 has 4 divisors (see below), whose sum is σ = 1246113120. Its totient is φ = 1068096936.

The previous prime is 1157105023. The next prime is 1157105041. The reversal of 1157105027 is 7205017511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7205017511 = 37 ⋅194730203.

It is a cyclic number.

It is not a de Polignac number, because 1157105027 - 2² = 1157105023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157105023) 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, 44504027 + ... + 44504052.

It is an arithmetic number, because the mean of its divisors is an integer number (311528280).

Almost surely, 2^1157105027 is an apocalyptic number.

1157105027 is a deficient number, since it is larger than the sum of its proper divisors (89008093).

1157105027 is an equidigital number, since it uses as much as digits as its factorization.

1157105027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89008092.

The product of its (nonzero) digits is 2450, while the sum is 29.

The square root of 1157105027 is about 34016.2465154520. The cubic root of 1157105027 is about 1049.8427661763.

The spelling of 1157105027 in words is "one billion, one hundred fifty-seven million, one hundred five thousand, twenty-seven".