1186396157 has 16 divisors (see below), whose sum is σ = 1288272960. Its totient is φ = 1088733312.

The previous prime is 1186396117. The next prime is 1186396193. The reversal of 1186396157 is 7516936811.

It is a cyclic number.

It is not a de Polignac number, because 1186396157 - 2⁶ = 1186396093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1186396117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160178 + ... + 167420.

It is an arithmetic number, because the mean of its divisors is an integer number (80517060).

Almost surely, 2^1186396157 is an apocalyptic number.

It is an amenable number.

1186396157 is a deficient number, since it is larger than the sum of its proper divisors (101876803).

1186396157 is a wasteful number, since it uses less digits than its factorization.

1186396157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7532.

The product of its digits is 272160, while the sum is 47.

The square root of 1186396157 is about 34444.1019189062. The cubic root of 1186396157 is about 1058.6276761532.

The spelling of 1186396157 in words is "one billion, one hundred eighty-six million, three hundred ninety-six thousand, one hundred fifty-seven".