142069646 has 8 divisors (see below), whose sum is σ = 225640080. Its totient is φ = 66856288.

The previous prime is 142069639. The next prime is 142069667. The reversal of 142069646 is 646960241.

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089226 + ... + 2089293.

It is an arithmetic number, because the mean of its divisors is an integer number (28205010).

Almost surely, 2^142069646 is an apocalyptic number.

142069646 is a deficient number, since it is larger than the sum of its proper divisors (83570434).

142069646 is a wasteful number, since it uses less digits than its factorization.

142069646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178538.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 142069646 is about 11919.2972108258. The cubic root of 142069646 is about 521.7956242049.

The spelling of 142069646 in words is "one hundred forty-two million, sixty-nine thousand, six hundred forty-six".