142917446 has 32 divisors (see below), whose sum is σ = 258577920. Its totient is φ = 57917376.

The previous prime is 142917407. The next prime is 142917461. The reversal of 142917446 is 644719241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26165 + ... + 31151.

It is an arithmetic number, because the mean of its divisors is an integer number (8080560).

Almost surely, 2^142917446 is an apocalyptic number.

142917446 is a deficient number, since it is larger than the sum of its proper divisors (115660474).

142917446 is a wasteful number, since it uses less digits than its factorization.

142917446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108.

The product of its digits is 48384, while the sum is 38.

The square root of 142917446 is about 11954.8084886375. The cubic root of 142917446 is about 522.8315041056.

The spelling of 142917446 in words is "one hundred forty-two million, nine hundred seventeen thousand, four hundred forty-six".