142298779 has 8 divisors (see below), whose sum is σ = 162908928. Its totient is φ = 121759080.

The previous prime is 142298759. The next prime is 142298803. The reversal of 142298779 is 977892241.

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

It is a cyclic number.

It is not a de Polignac number, because 142298779 - 2¹³ = 142290587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142298719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13207 + ... + 21424.

It is an arithmetic number, because the mean of its divisors is an integer number (20363616).

Almost surely, 2^142298779 is an apocalyptic number.

142298779 is a deficient number, since it is larger than the sum of its proper divisors (20610149).

142298779 is an equidigital number, since it uses as much as digits as its factorization.

142298779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35225.

The product of its digits is 508032, while the sum is 49.

The square root of 142298779 is about 11928.9051886583. The cubic root of 142298779 is about 522.0759946219.

The spelling of 142298779 in words is "one hundred forty-two million, two hundred ninety-eight thousand, seven hundred seventy-nine".