1152391659 has 4 divisors (see below), whose sum is σ = 1536522216. Its totient is φ = 768261104.

The previous prime is 1152391619. The next prime is 1152391663. The reversal of 1152391659 is 9561932511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9561932511 = 3 ⋅3187310837.

It is a cyclic number.

It is not a de Polignac number, because 1152391659 - 2⁸ = 1152391403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1152391659.

It is not an unprimeable number, because it can be changed into a prime (1152391619) 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, 192065274 + ... + 192065279.

It is an arithmetic number, because the mean of its divisors is an integer number (384130554).

Almost surely, 2^1152391659 is an apocalyptic number.

1152391659 is a deficient number, since it is larger than the sum of its proper divisors (384130557).

1152391659 is an equidigital number, since it uses as much as digits as its factorization.

1152391659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384130556.

The product of its digits is 72900, while the sum is 42.

The square root of 1152391659 is about 33946.8946886162. The cubic root of 1152391659 is about 1048.4153447961.

The spelling of 1152391659 in words is "one billion, one hundred fifty-two million, three hundred ninety-one thousand, six hundred fifty-nine".