142922870 has 8 divisors (see below), whose sum is σ = 257261184. Its totient is φ = 57169144.

The previous prime is 142922863. The next prime is 142922873. The reversal of 142922870 is 78229241.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142922870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142922873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7146134 + ... + 7146153.

It is an arithmetic number, because the mean of its divisors is an integer number (32157648).

Almost surely, 2^142922870 is an apocalyptic number.

142922870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142922870 is a deficient number, since it is larger than the sum of its proper divisors (114338314).

142922870 is a wasteful number, since it uses less digits than its factorization.

142922870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14292294.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 142922870 is about 11955.0353408093. The cubic root of 142922870 is about 522.8381181855.

The spelling of 142922870 in words is "one hundred forty-two million, nine hundred twenty-two thousand, eight hundred seventy".