142569994 has 8 divisors (see below), whose sum is σ = 244405728. Its totient is φ = 61101420.

The previous prime is 142569989. The next prime is 142570027. The reversal of 142569994 is 499965241.

142569994 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

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, 5091772 + ... + 5091799.

It is an arithmetic number, because the mean of its divisors is an integer number (30550716).

Almost surely, 2^142569994 is an apocalyptic number.

142569994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142569994 is a deficient number, since it is larger than the sum of its proper divisors (101835734).

142569994 is a wasteful number, since it uses less digits than its factorization.

142569994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10183580.

The product of its digits is 699840, while the sum is 49.

The square root of 142569994 is about 11940.2677524417. The cubic root of 142569994 is about 522.4074684856.

The spelling of 142569994 in words is "one hundred forty-two million, five hundred sixty-nine thousand, nine hundred ninety-four".