142694144 has 36 divisors (see below), whose sum is σ = 286364400. Its totient is φ = 70963200.

The previous prime is 142694129. The next prime is 142694173. The reversal of 142694144 is 441496241.

It is a congruent number.

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, 49544 + ... + 52344.

Almost surely, 2^142694144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142694144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143182200).

142694144 is an abundant number, since it is smaller than the sum of its proper divisors (143670256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142694144 is an equidigital number, since it uses as much as digits as its factorization.

142694144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3016 (or 3002 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 142694144 is about 11945.4654157969. The cubic root of 142694144 is about 522.5590620262.

The spelling of 142694144 in words is "one hundred forty-two million, six hundred ninety-four thousand, one hundred forty-four".