142912928 has 24 divisors (see below), whose sum is σ = 291063780. Its totient is φ = 68992000.

The previous prime is 142912919. The next prime is 142912967. The reversal of 142912928 is 829219241.

It can be written as a sum of positive squares in 2 ways, for example, as 136702864 + 6210064 = 11692^2 + 2492^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142912891 and 142912900.

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, 76073 + ... + 77928.

Almost surely, 2^142912928 is an apocalyptic number.

It is an amenable number.

142912928 is an abundant number, since it is smaller than the sum of its proper divisors (148150852).

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

142912928 is a wasteful number, since it uses less digits than its factorization.

142912928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154040 (or 154032 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 142912928 is about 11954.6195255223. The cubic root of 142912928 is about 522.8259946835.

The spelling of 142912928 in words is "one hundred forty-two million, nine hundred twelve thousand, nine hundred twenty-eight".