1157057527 has 4 divisors (see below), whose sum is σ = 1207364400. Its totient is φ = 1106750656.

The previous prime is 1157057521. The next prime is 1157057533. The reversal of 1157057527 is 7257507511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7257507511 = 107 ⋅67827173.

It is an interprime number because it is at equal distance from previous prime (1157057521) and next prime (1157057533).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157057527 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 1157057527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157057521) 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, 25153402 + ... + 25153447.

It is an arithmetic number, because the mean of its divisors is an integer number (301841100).

Almost surely, 2^1157057527 is an apocalyptic number.

1157057527 is a deficient number, since it is larger than the sum of its proper divisors (50306873).

1157057527 is an equidigital number, since it uses as much as digits as its factorization.

1157057527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50306872.

The product of its (nonzero) digits is 85750, while the sum is 40.

The square root of 1157057527 is about 34015.5483124997. The cubic root of 1157057527 is about 1049.8284003776.

The spelling of 1157057527 in words is "one billion, one hundred fifty-seven million, fifty-seven thousand, five hundred twenty-seven".