979142 has 4 divisors (see below), whose sum is σ = 1468716. Its totient is φ = 489570.

The previous prime is 979117. The next prime is 979159. The reversal of 979142 is 241979.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 979099 and 979108.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979142.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 244784 + ... + 244787.

It is an arithmetic number, because the mean of its divisors is an integer number (367179).

2⁹⁷⁹¹⁴² is an apocalyptic number.

979142 is a deficient number, since it is larger than the sum of its proper divisors (489574).

979142 is a wasteful number, since it uses less digits than its factorization.

979142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489573.

The product of its digits is 4536, while the sum is 32.

The square root of 979142 is about 989.5160433262. The cubic root of 979142 is about 99.2998425701.

The spelling of 979142 in words is "nine hundred seventy-nine thousand, one hundred forty-two".