142744536 has 48 divisors (see below), whose sum is σ = 421747560. Its totient is φ = 43255680.

The previous prime is 142744517. The next prime is 142744559. The reversal of 142744536 is 635447241.

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

It is a self number, because there is not a number n which added to its sum of digits gives 142744536.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89325 + ... + 90908.

Almost surely, 2^142744536 is an apocalyptic number.

It is an amenable number.

142744536 is an abundant number, since it is smaller than the sum of its proper divisors (279003024).

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

142744536 is a wasteful number, since it uses less digits than its factorization.

142744536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180256 (or 180249 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 142744536 is about 11947.5744818771. The cubic root of 142744536 is about 522.6205681640.

The spelling of 142744536 in words is "one hundred forty-two million, seven hundred forty-four thousand, five hundred thirty-six".