142733459 has 4 divisors (see below), whose sum is σ = 155709240. Its totient is φ = 129757680.

The previous prime is 142733417. The next prime is 142733471. The reversal of 142733459 is 954337241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142733459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142735459) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6487874 + ... + 6487895.

It is an arithmetic number, because the mean of its divisors is an integer number (38927310).

Almost surely, 2^142733459 is an apocalyptic number.

142733459 is a deficient number, since it is larger than the sum of its proper divisors (12975781).

142733459 is a wasteful number, since it uses less digits than its factorization.

142733459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12975780.

The product of its digits is 90720, while the sum is 38.

The square root of 142733459 is about 11947.1109059889. The cubic root of 142733459 is about 522.6070493330.

The spelling of 142733459 in words is "one hundred forty-two million, seven hundred thirty-three thousand, four hundred fifty-nine".