1142653356 has 72 divisors (see below), whose sum is σ = 3116153040. Its totient is φ = 350953344.

The previous prime is 1142653301. The next prime is 1142653367. The reversal of 1142653356 is 6533562411.

1142653356 is a `hidden beast` number, since 114 + 2 + 6 + 533 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1142653356.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303735 + ... + 307473.

Almost surely, 2^1142653356 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 1142653356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1558076520).

1142653356 is an abundant number, since it is smaller than the sum of its proper divisors (1973499684).

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

1142653356 is a wasteful number, since it uses less digits than its factorization.

1142653356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415 (or 4410 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1142653356 is about 33803.1560065033. The cubic root of 1142653356 is about 1045.4537702546.

The spelling of 1142653356 in words is "one billion, one hundred forty-two million, six hundred fifty-three thousand, three hundred fifty-six".