1153431115 has 16 divisors (see below), whose sum is σ = 1405368288. Its totient is φ = 908683776.

The previous prime is 1153431107. The next prime is 1153431131. The reversal of 1153431115 is 5111343511.

It is a cyclic number.

It is not a de Polignac number, because 1153431115 - 2³ = 1153431107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1153431115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82204 + ... + 95206.

It is an arithmetic number, because the mean of its divisors is an integer number (87835518).

Almost surely, 2^1153431115 is an apocalyptic number.

1153431115 is a deficient number, since it is larger than the sum of its proper divisors (251937173).

1153431115 is a wasteful number, since it uses less digits than its factorization.

1153431115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13278.

The product of its digits is 900, while the sum is 25.

The square root of 1153431115 is about 33962.2012684690. The cubic root of 1153431115 is about 1048.7304732265.

Adding to 1153431115 its reverse (5111343511), we get a palindrome (6264774626).

The spelling of 1153431115 in words is "one billion, one hundred fifty-three million, four hundred thirty-one thousand, one hundred fifteen".