1157362771 has 4 divisors (see below), whose sum is σ = 1225442952. Its totient is φ = 1089282592.

The previous prime is 1157362727. The next prime is 1157362777. The reversal of 1157362771 is 1772637511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1772637511 = 883 ⋅2007517.

It is a cyclic number.

It is not a de Polignac number, because 1157362771 - 2¹³ = 1157354579 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 not an unprimeable number, because it can be changed into a prime (1157362777) 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, 34040065 + ... + 34040098.

It is an arithmetic number, because the mean of its divisors is an integer number (306360738).

Almost surely, 2^1157362771 is an apocalyptic number.

1157362771 is a deficient number, since it is larger than the sum of its proper divisors (68080181).

1157362771 is an equidigital number, since it uses as much as digits as its factorization.

1157362771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68080180.

The product of its digits is 61740, while the sum is 40.

The square root of 1157362771 is about 34020.0348471309. The cubic root of 1157362771 is about 1049.9207108684.

The spelling of 1157362771 in words is "one billion, one hundred fifty-seven million, three hundred sixty-two thousand, seven hundred seventy-one".