142975317 has 8 divisors (see below), whose sum is σ = 196783360. Its totient is φ = 92242080.

The previous prime is 142975309. The next prime is 142975333. The reversal of 142975317 is 713579241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142975317 - 2³ = 142975309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142975367) 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 7 ways as a sum of consecutive naturals, for example, 768592 + ... + 768777.

It is an arithmetic number, because the mean of its divisors is an integer number (24597920).

Almost surely, 2^142975317 is an apocalyptic number.

It is an amenable number.

142975317 is a deficient number, since it is larger than the sum of its proper divisors (53808043).

142975317 is a wasteful number, since it uses less digits than its factorization.

142975317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537403.

The product of its digits is 52920, while the sum is 39.

The square root of 142975317 is about 11957.2286504859. The cubic root of 142975317 is about 522.9020639517.

The spelling of 142975317 in words is "one hundred forty-two million, nine hundred seventy-five thousand, three hundred seventeen".