142987484 has 12 divisors (see below), whose sum is σ = 252658224. Its totient is φ = 70799424.

The previous prime is 142987463. The next prime is 142987511. The reversal of 142987484 is 484789241.

It is a congruent number.

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, 173117 + ... + 173940.

It is an arithmetic number, because the mean of its divisors is an integer number (21054852).

Almost surely, 2^142987484 is an apocalyptic number.

It is an amenable number.

142987484 is a deficient number, since it is larger than the sum of its proper divisors (109670740).

142987484 is a wasteful number, since it uses less digits than its factorization.

142987484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347164 (or 347162 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The square root of 142987484 is about 11957.7374114002. The cubic root of 142987484 is about 522.9168962763.

The spelling of 142987484 in words is "one hundred forty-two million, nine hundred eighty-seven thousand, four hundred eighty-four".