142272936 has 80 divisors (see below), whose sum is σ = 429174900. Its totient is φ = 43773696.

The previous prime is 142272899. The next prime is 142272937. The reversal of 142272936 is 639272241.

142272936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 110124036 + 32148900 = 10494^2 + 5670^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 142272936.

It is not an unprimeable number, because it can be changed into a prime (142272937) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21 + ... + 16868.

Almost surely, 2^142272936 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 142272936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214587450).

142272936 is an abundant number, since it is smaller than the sum of its proper divisors (286901964).

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

142272936 is a wasteful number, since it uses less digits than its factorization.

142272936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16920 (or 16907 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 142272936 is about 11927.8219302604. The cubic root of 142272936 is about 522.0443878227.

Subtracting from 142272936 its product of digits (36288), we obtain a cube (142236648 = 522³).

The spelling of 142272936 in words is "one hundred forty-two million, two hundred seventy-two thousand, nine hundred thirty-six".