1163201157 has 12 divisors (see below), whose sum is σ = 1688887564. Its totient is φ = 771448320.

The previous prime is 1163201141. The next prime is 1163201161. The reversal of 1163201157 is 7511023611.

1163201157 is a `hidden beast` number, since 11 + 632 + 0 + 1 + 15 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 602506116 + 560695041 = 24546^2 + 23679^2 .

It is not a de Polignac number, because 1163201157 - 2⁴ = 1163201141 is a prime.

It is a super-2 number, since 2×1163201157² = 2706073863292277298, which contains 22 as substring.

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 1163201157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163201177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333094 + ... + 336567.

Almost surely, 2^1163201157 is an apocalyptic number.

It is an amenable number.

1163201157 is a deficient number, since it is larger than the sum of its proper divisors (525686407).

1163201157 is a wasteful number, since it uses less digits than its factorization.

1163201157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669860 (or 669857 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1163201157 is about 34105.7349576285. The cubic root of 1163201157 is about 1051.6832131913.

Adding to 1163201157 its reverse (7511023611), we get a palindrome (8674224768).

The spelling of 1163201157 in words is "one billion, one hundred sixty-three million, two hundred one thousand, one hundred fifty-seven".