1115005144 has 32 divisors (see below), whose sum is σ = 2296026000. Its totient is φ = 503413120.

The previous prime is 1115005121. The next prime is 1115005147. The reversal of 1115005144 is 4415005111.

It is a happy number.

It is a super-2 number, since 2×1115005144² = 2486472942292921472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115005147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29407 + ... + 55630.

Almost surely, 2^1115005144 is an apocalyptic number.

It is an amenable number.

1115005144 is an abundant number, since it is smaller than the sum of its proper divisors (1181020856).

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

1115005144 is a wasteful number, since it uses less digits than its factorization.

1115005144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85203 (or 85199 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1115005144 is about 33391.6927393626. The cubic root of 1115005144 is about 1036.9527244593.

The spelling of 1115005144 in words is "one billion, one hundred fifteen million, five thousand, one hundred forty-four".