142994855 has 8 divisors (see below), whose sum is σ = 180625200. Its totient is φ = 108374976.

The previous prime is 142994827. The next prime is 142994861. The reversal of 142994855 is 558499241.

It is a happy number.

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 142994855 - 2¹² = 142990759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752510 + ... + 752699.

It is an arithmetic number, because the mean of its divisors is an integer number (22578150).

Almost surely, 2^142994855 is an apocalyptic number.

142994855 is a deficient number, since it is larger than the sum of its proper divisors (37630345).

142994855 is a wasteful number, since it uses less digits than its factorization.

142994855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505233.

The product of its digits is 518400, while the sum is 47.

The square root of 142994855 is about 11958.0456179093. The cubic root of 142994855 is about 522.9258815714.

The spelling of 142994855 in words is "one hundred forty-two million, nine hundred ninety-four thousand, eight hundred fifty-five".