142679219 has 4 divisors (see below), whose sum is σ = 143396400. Its totient is φ = 141962040.

The previous prime is 142679213. The next prime is 142679231. The reversal of 142679219 is 912976241.

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-142679219 is a prime.

It is a super-2 number, since 2×142679219² = 40714719068899922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142679213) 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, 358292 + ... + 358689.

It is an arithmetic number, because the mean of its divisors is an integer number (35849100).

Almost surely, 2^142679219 is an apocalyptic number.

142679219 is a deficient number, since it is larger than the sum of its proper divisors (717181).

142679219 is an equidigital number, since it uses as much as digits as its factorization.

142679219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717180.

The product of its digits is 54432, while the sum is 41.

The square root of 142679219 is about 11944.8406854173. The cubic root of 142679219 is about 522.5408424840.

The spelling of 142679219 in words is "one hundred forty-two million, six hundred seventy-nine thousand, two hundred nineteen".