142812494 has 8 divisors (see below), whose sum is σ = 233693208. Its totient is φ = 64914760.

The previous prime is 142812491. The next prime is 142812511. The reversal of 142812494 is 494218241.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142812491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3245717 + ... + 3245760.

It is an arithmetic number, because the mean of its divisors is an integer number (29211651).

Almost surely, 2^142812494 is an apocalyptic number.

142812494 is a deficient number, since it is larger than the sum of its proper divisors (90880714).

142812494 is a wasteful number, since it uses less digits than its factorization.

142812494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6491490.

The product of its digits is 18432, while the sum is 35.

The square root of 142812494 is about 11950.4181516799. The cubic root of 142812494 is about 522.7034916273.

The spelling of 142812494 in words is "one hundred forty-two million, eight hundred twelve thousand, four hundred ninety-four".