142933489 has 16 divisors (see below), whose sum is σ = 151528320. Its totient is φ = 134628480.

The previous prime is 142933487. The next prime is 142933493. The reversal of 142933489 is 984339241.

It is a cyclic number.

It is not a de Polignac number, because 142933489 - 2¹ = 142933487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142933481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226204 + ... + 226834.

It is an arithmetic number, because the mean of its divisors is an integer number (9470520).

Almost surely, 2^142933489 is an apocalyptic number.

It is an amenable number.

142933489 is a deficient number, since it is larger than the sum of its proper divisors (8594831).

142933489 is a wasteful number, since it uses less digits than its factorization.

142933489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its digits is 186624, while the sum is 43.

The square root of 142933489 is about 11955.4794550449. The cubic root of 142933489 is about 522.8510666158.

The spelling of 142933489 in words is "one hundred forty-two million, nine hundred thirty-three thousand, four hundred eighty-nine".