1189652157 has 32 divisors (see below), whose sum is σ = 1813785600. Its totient is φ = 770088384.

The previous prime is 1189652143. The next prime is 1189652159. The reversal of 1189652157 is 7512569811.

1189652157 is a `hidden beast` number, since 118 + 9 + 6 + 521 + 5 + 7 = 666.

It is not a de Polignac number, because 1189652157 - 2⁷ = 1189652029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189652159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 675444 + ... + 677202.

It is an arithmetic number, because the mean of its divisors is an integer number (56680800).

Almost surely, 2^1189652157 is an apocalyptic number.

It is an amenable number.

1189652157 is a deficient number, since it is larger than the sum of its proper divisors (624133443).

1189652157 is a wasteful number, since it uses less digits than its factorization.

1189652157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482 (or 2476 counting only the distinct ones).

The product of its digits is 151200, while the sum is 45.

The square root of 1189652157 is about 34491.3345204270. The cubic root of 1189652157 is about 1059.5952403244.

The spelling of 1189652157 in words is "one billion, one hundred eighty-nine million, six hundred fifty-two thousand, one hundred fifty-seven".