1149115926 has 64 divisors (see below), whose sum is σ = 2785821696. Its totient is φ = 308880000.

The previous prime is 1149115921. The next prime is 1149115927. The reversal of 1149115926 is 6295119411.

It is a super-2 number, since 2×1149115926² = 2640934822773674952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149115921) 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, 49176 + ... + 68676.

It is an arithmetic number, because the mean of its divisors is an integer number (43528464).

Almost surely, 2^1149115926 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1149115926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1392910848).

1149115926 is an abundant number, since it is smaller than the sum of its proper divisors (1636705770).

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

1149115926 is a wasteful number, since it uses less digits than its factorization.

1149115926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19597.

The product of its digits is 19440, while the sum is 39.

The square root of 1149115926 is about 33898.6124494794. The cubic root of 1149115926 is about 1047.4210104046.

The spelling of 1149115926 in words is "one billion, one hundred forty-nine million, one hundred fifteen thousand, nine hundred twenty-six".