1148564859 has 16 divisors (see below), whose sum is σ = 1677177600. Its totient is φ = 694827936.

The previous prime is 1148564827. The next prime is 1148564867. The reversal of 1148564859 is 9584658411.

It is a happy number.

It is not a de Polignac number, because 1148564859 - 2⁵ = 1148564827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1148564159) 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, 247279 + ... + 251880.

It is an arithmetic number, because the mean of its divisors is an integer number (104823600).

Almost surely, 2^1148564859 is an apocalyptic number.

1148564859 is a deficient number, since it is larger than the sum of its proper divisors (528612741).

1148564859 is a wasteful number, since it uses less digits than its factorization.

1148564859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499234.

The product of its digits is 1382400, while the sum is 51.

The square root of 1148564859 is about 33890.4833102156. The cubic root of 1148564859 is about 1047.2535508147.

The spelling of 1148564859 in words is "one billion, one hundred forty-eight million, five hundred sixty-four thousand, eight hundred fifty-nine".