142069647 has 8 divisors (see below), whose sum is σ = 189481600. Its totient is φ = 94685400.

The previous prime is 142069639. The next prime is 142069667. The reversal of 142069647 is 746960241.

It is a happy number.

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

It is not a de Polignac number, because 142069647 - 2³ = 142069639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142069667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14604 + ... + 22302.

It is an arithmetic number, because the mean of its divisors is an integer number (23685200).

Almost surely, 2^142069647 is an apocalyptic number.

142069647 is a deficient number, since it is larger than the sum of its proper divisors (47411953).

142069647 is an equidigital number, since it uses as much as digits as its factorization.

142069647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13853.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 142069647 is about 11919.2972527746. The cubic root of 142069647 is about 521.7956254292.

The spelling of 142069647 in words is "one hundred forty-two million, sixty-nine thousand, six hundred forty-seven".