1142847564 has 48 divisors (see below), whose sum is σ = 2749410048. Its totient is φ = 369206208.

The previous prime is 1142847557. The next prime is 1142847613. The reversal of 1142847564 is 4657482411.

It is a super-2 number, since 2×1142847564² = 2612201109081468192, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 111879 + ... + 121665.

It is an arithmetic number, because the mean of its divisors is an integer number (57279376).

Almost surely, 2^1142847564 is an apocalyptic number.

It is an amenable number.

1142847564 is an abundant number, since it is smaller than the sum of its proper divisors (1606562484).

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

1142847564 is a wasteful number, since it uses less digits than its factorization.

1142847564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094 (or 10092 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 1142847564 is about 33806.0285156361. The cubic root of 1142847564 is about 1045.5129961440.

It can be divided in two parts, 1142847 and 564, that added together give a palindrome (1143411).

The spelling of 1142847564 in words is "one billion, one hundred forty-two million, eight hundred forty-seven thousand, five hundred sixty-four".