1115552142 has 32 divisors (see below), whose sum is σ = 2513928960. Its totient is φ = 366612120.

The previous prime is 1115552131. The next prime is 1115552167. The reversal of 1115552142 is 2412555111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141648 + ... + 149315.

It is an arithmetic number, because the mean of its divisors is an integer number (78560280).

Almost surely, 2^1115552142 is an apocalyptic number.

1115552142 is an abundant number, since it is smaller than the sum of its proper divisors (1398376818).

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

1115552142 is a wasteful number, since it uses less digits than its factorization.

1115552142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291045 (or 291039 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 1115552142 is about 33399.8823650623. The cubic root of 1115552142 is about 1037.1222657810.

The spelling of 1115552142 in words is "one billion, one hundred fifteen million, five hundred fifty-two thousand, one hundred forty-two".