1142458112 has 72 divisors (see below), whose sum is σ = 2364253920. Its totient is φ = 550584320.

The previous prime is 1142458069. The next prime is 1142458117. The reversal of 1142458112 is 2118542411.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142458117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933533 + ... + 934755.

It is an arithmetic number, because the mean of its divisors is an integer number (32836860).

Almost surely, 2^1142458112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142458112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1182126960).

1142458112 is an abundant number, since it is smaller than the sum of its proper divisors (1221795808).

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

1142458112 is an equidigital number, since it uses as much as digits as its factorization.

1142458112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1355 counting only the distinct ones).

The product of its digits is 2560, while the sum is 29.

The square root of 1142458112 is about 33800.2679279322. The cubic root of 1142458112 is about 1045.3942216604.

The spelling of 1142458112 in words is "one billion, one hundred forty-two million, four hundred fifty-eight thousand, one hundred twelve".