1142193564 has 36 divisors (see below), whose sum is σ = 2889164824. Its totient is φ = 380473632.

The previous prime is 1142193553. The next prime is 1142193571. The reversal of 1142193564 is 4653912411.

It is a happy number.

1142193564 is a `hidden beast` number, since 1 + 1 + 4 + 2 + 1 + 93 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1142193564² = 2609212275286044192, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47559 + ... + 67425.

Almost surely, 2^1142193564 is an apocalyptic number.

It is an amenable number.

1142193564 is an abundant number, since it is smaller than the sum of its proper divisors (1746971260).

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

1142193564 is a wasteful number, since it uses less digits than its factorization.

1142193564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21474 (or 21469 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1142193564 is about 33796.3543004271. The cubic root of 1142193564 is about 1045.3135248142.

The spelling of 1142193564 in words is "one billion, one hundred forty-two million, one hundred ninety-three thousand, five hundred sixty-four".