142944536 has 16 divisors (see below), whose sum is σ = 306309840. Its totient is φ = 61261920.

The previous prime is 142944521. The next prime is 142944541. The reversal of 142944536 is 635449241.

It is a self number, because there is not a number n which added to its sum of digits gives 142944536.

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, 1276235 + ... + 1276346.

It is an arithmetic number, because the mean of its divisors is an integer number (19144365).

Almost surely, 2^142944536 is an apocalyptic number.

It is an amenable number.

142944536 is an abundant number, since it is smaller than the sum of its proper divisors (163365304).

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

142944536 is a wasteful number, since it uses less digits than its factorization.

142944536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552594 (or 2552590 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 142944536 is about 11955.9414518473. The cubic root of 142944536 is about 522.8645362535.

The spelling of 142944536 in words is "one hundred forty-two million, nine hundred forty-four thousand, five hundred thirty-six".