1142561524 has 24 divisors (see below), whose sum is σ = 2246912640. Its totient is φ = 504407904.

The previous prime is 1142561503. The next prime is 1142561531. The reversal of 1142561524 is 4251652411.

It is a happy number.

It is a super-2 number, since 2×1142561524² = 2610893672250405152, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 476464 + ... + 478855.

It is an arithmetic number, because the mean of its divisors is an integer number (93621360).

Almost surely, 2^1142561524 is an apocalyptic number.

It is an amenable number.

1142561524 is a deficient number, since it is larger than the sum of its proper divisors (1104351116).

1142561524 is a wasteful number, since it uses less digits than its factorization.

1142561524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955359 (or 955357 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 1142561524 is about 33801.7976445041. The cubic root of 1142561524 is about 1045.4257627280.

The spelling of 1142561524 in words is "one billion, one hundred forty-two million, five hundred sixty-one thousand, five hundred twenty-four".