142812994 has 8 divisors (see below), whose sum is σ = 221606460. Its totient is φ = 68944176.

The previous prime is 142812977. The next prime is 142812997. The reversal of 142812994 is 499218241.

It can be written as a sum of positive squares in 2 ways, for example, as 124211025 + 18601969 = 11145^2 + 4313^2 .

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

It is not an unprimeable number, because it can be changed into a prime (142812997) 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, 1231089 + ... + 1231204.

Almost surely, 2^142812994 is an apocalyptic number.

142812994 is a deficient number, since it is larger than the sum of its proper divisors (78793466).

142812994 is a wasteful number, since it uses less digits than its factorization.

142812994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462324.

The product of its digits is 41472, while the sum is 40.

The square root of 142812994 is about 11950.4390714316. The cubic root of 142812994 is about 522.7041016380.

The spelling of 142812994 in words is "one hundred forty-two million, eight hundred twelve thousand, nine hundred ninety-four".