1151540799 has 16 divisors (see below), whose sum is σ = 1543567200. Its totient is φ = 763614720.

The previous prime is 1151540791. The next prime is 1151540813. The reversal of 1151540799 is 9970451511.

It is a happy number.

It is not a de Polignac number, because 1151540799 - 2³ = 1151540791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1151540799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151540791) 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, 871059 + ... + 872379.

It is an arithmetic number, because the mean of its divisors is an integer number (96472950).

Almost surely, 2^1151540799 is an apocalyptic number.

1151540799 is a deficient number, since it is larger than the sum of its proper divisors (392026401).

1151540799 is a wasteful number, since it uses less digits than its factorization.

1151540799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650.

The product of its (nonzero) digits is 56700, while the sum is 42.

The square root of 1151540799 is about 33934.3601530956. The cubic root of 1151540799 is about 1048.1572513170.

The spelling of 1151540799 in words is "one billion, one hundred fifty-one million, five hundred forty thousand, seven hundred ninety-nine".