142630978 has 8 divisors (see below), whose sum is σ = 244510272. Its totient is φ = 61127556.

The previous prime is 142630951. The next prime is 142630987. The reversal of 142630978 is 879036241.

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

It is a self number, because there is not a number n which added to its sum of digits gives 142630978.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5093950 + ... + 5093977.

It is an arithmetic number, because the mean of its divisors is an integer number (30563784).

Almost surely, 2^142630978 is an apocalyptic number.

142630978 is a deficient number, since it is larger than the sum of its proper divisors (101879294).

142630978 is a wasteful number, since it uses less digits than its factorization.

142630978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10187936.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 142630978 is about 11942.8211909917. The cubic root of 142630978 is about 522.4819440812.

The spelling of 142630978 in words is "one hundred forty-two million, six hundred thirty thousand, nine hundred seventy-eight".