142897584 has 20 divisors (see below), whose sum is σ = 369152216. Its totient is φ = 47632512.

The previous prime is 142897571. The next prime is 142897621. The reversal of 142897584 is 485798241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 2977033 = 142897584 / (1 + 4 + 2 + 8 + 9 + 7 + 5 + 8 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1488469 + ... + 1488564.

Almost surely, 2^142897584 is an apocalyptic number.

It is an amenable number.

142897584 is an abundant number, since it is smaller than the sum of its proper divisors (226254632).

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

142897584 is a wasteful number, since it uses less digits than its factorization.

142897584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977044 (or 2977038 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 142897584 is about 11953.9777480134. The cubic root of 142897584 is about 522.8072827556.

The spelling of 142897584 in words is "one hundred forty-two million, eight hundred ninety-seven thousand, five hundred eighty-four".