1157535801 has 6 divisors (see below), whose sum is σ = 1671996170. Its totient is φ = 771690528.

The previous prime is 1157535793. The next prime is 1157535829. The reversal of 1157535801 is 1085357511.

1157535801 is a `hidden beast` number, since 1 + 1 + 5 + 75 + 3 + 580 + 1 = 666.

1157535801 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 990738576 + 166797225 = 31476^2 + 12915^2 .

It is not a de Polignac number, because 1157535801 - 2³ = 1157535793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157535871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64307536 + ... + 64307553.

Almost surely, 2^1157535801 is an apocalyptic number.

It is an amenable number.

1157535801 is a deficient number, since it is larger than the sum of its proper divisors (514460369).

1157535801 is a wasteful number, since it uses less digits than its factorization.

1157535801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128615095 (or 128615092 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 36.

The square root of 1157535801 is about 34022.5778123881. The cubic root of 1157535801 is about 1049.9730305998.

The spelling of 1157535801 in words is "one billion, one hundred fifty-seven million, five hundred thirty-five thousand, eight hundred one".