1159564494 has 64 divisors (see below), whose sum is σ = 2582834688. Its totient is φ = 344092800.

The previous prime is 1159564493. The next prime is 1159564499. The reversal of 1159564494 is 4944659511.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159564493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1179127 + ... + 1180109.

It is an arithmetic number, because the mean of its divisors is an integer number (40356792).

Almost surely, 2^1159564494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1159564494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1291417344).

1159564494 is an abundant number, since it is smaller than the sum of its proper divisors (1423270194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1159564494 is a wasteful number, since it uses less digits than its factorization.

1159564494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353.

The product of its digits is 777600, while the sum is 48.

The square root of 1159564494 is about 34052.3786834341. The cubic root of 1159564494 is about 1050.5860655659.

The spelling of 1159564494 in words is "one billion, one hundred fifty-nine million, five hundred sixty-four thousand, four hundred ninety-four".