1157305027 has 4 divisors (see below), whose sum is σ = 1161916056. Its totient is φ = 1152694000.

The previous prime is 1157305021. The next prime is 1157305091. The reversal of 1157305027 is 7205037511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157305027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157305027.

It is not an unprimeable number, because it can be changed into a prime (1157305021) 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, 2305138 + ... + 2305639.

It is an arithmetic number, because the mean of its divisors is an integer number (290479014).

Almost surely, 2^1157305027 is an apocalyptic number.

1157305027 is a deficient number, since it is larger than the sum of its proper divisors (4611029).

1157305027 is an equidigital number, since it uses as much as digits as its factorization.

1157305027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4611028.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 1157305027 is about 34019.1861601656. The cubic root of 1157305027 is about 1049.9032494376.

The spelling of 1157305027 in words is "one billion, one hundred fifty-seven million, three hundred five thousand, twenty-seven".