1185352157 has 4 divisors (see below), whose sum is σ = 1293111456. Its totient is φ = 1077592860.

The previous prime is 1185352151. The next prime is 1185352169. The reversal of 1185352157 is 7512535811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1185352157 - 2⁶ = 1185352093 is a prime.

It is a super-2 number, since 2×1185352157² = 2810119472209105298, 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 1185352157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1185352151) 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, 53879633 + ... + 53879654.

It is an arithmetic number, because the mean of its divisors is an integer number (323277864).

Almost surely, 2^1185352157 is an apocalyptic number.

It is an amenable number.

1185352157 is a deficient number, since it is larger than the sum of its proper divisors (107759299).

1185352157 is a wasteful number, since it uses less digits than its factorization.

1185352157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107759298.

The product of its digits is 42000, while the sum is 38.

The square root of 1185352157 is about 34428.9435940169. The cubic root of 1185352157 is about 1058.3170627516.

Adding to 1185352157 its reverse (7512535811), we get a palindrome (8697887968).

The spelling of 1185352157 in words is "one billion, one hundred eighty-five million, three hundred fifty-two thousand, one hundred fifty-seven".