1121515344 has 60 divisors (see below), whose sum is σ = 3173987700. Its totient is φ = 369633792.

The previous prime is 1121515333. The next prime is 1121515349. The reversal of 1121515344 is 4435151211.

1121515344 is a `hidden beast` number, since 1 + 121 + 5 + 1 + 534 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 729000000 + 392515344 = 27000^2 + 19812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121515349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30939 + ... + 56570.

It is an arithmetic number, because the mean of its divisors is an integer number (52899795).

Almost surely, 2^1121515344 is an apocalyptic number.

It is an amenable number.

1121515344 is an abundant number, since it is smaller than the sum of its proper divisors (2052472356).

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

1121515344 is a wasteful number, since it uses less digits than its factorization.

1121515344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87612 (or 87603 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1121515344 is about 33489.0331899862. The cubic root of 1121515344 is about 1038.9669673244.

Adding to 1121515344 its reverse (4435151211), we get a palindrome (5556666555).

The spelling of 1121515344 in words is "one billion, one hundred twenty-one million, five hundred fifteen thousand, three hundred forty-four".