142253679 has 8 divisors (see below), whose sum is σ = 189768880. Its totient is φ = 94787136.

The previous prime is 142253677. The next prime is 142253693. The reversal of 142253679 is 976352241.

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

It is not a de Polignac number, because 142253679 - 2¹ = 142253677 is a prime.

It is a super-2 number, since 2×142253679² = 40472218378070082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142253677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4684 + ... + 17505.

It is an arithmetic number, because the mean of its divisors is an integer number (23721110).

Almost surely, 2^142253679 is an apocalyptic number.

142253679 is a deficient number, since it is larger than the sum of its proper divisors (47515201).

142253679 is a wasteful number, since it uses less digits than its factorization.

142253679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24329.

The product of its digits is 90720, while the sum is 39.

The square root of 142253679 is about 11927.0146725826. The cubic root of 142253679 is about 522.0208334193.

The spelling of 142253679 in words is "one hundred forty-two million, two hundred fifty-three thousand, six hundred seventy-nine".