142763279 has 8 divisors (see below), whose sum is σ = 147077328. Its totient is φ = 138473280.

The previous prime is 142763227. The next prime is 142763281. The reversal of 142763279 is 972367241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142763279 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 (142763479) 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, 6419 + ... + 18075.

It is an arithmetic number, because the mean of its divisors is an integer number (18384666).

Almost surely, 2^142763279 is an apocalyptic number.

142763279 is a deficient number, since it is larger than the sum of its proper divisors (4314049).

142763279 is a wasteful number, since it uses less digits than its factorization.

142763279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12025.

The product of its digits is 127008, while the sum is 41.

The square root of 142763279 is about 11948.3588412803. The cubic root of 142763279 is about 522.6434413072.

The spelling of 142763279 in words is "one hundred forty-two million, seven hundred sixty-three thousand, two hundred seventy-nine".