142173612 has 72 divisors (see below), whose sum is σ = 412604192. Its totient is φ = 40435200.

The previous prime is 142173611. The next prime is 142173617. The reversal of 142173612 is 216371241.

142173612 is a `hidden beast` number, since 1 + 42 + 1 + 7 + 3 + 612 = 666.

142173612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (142173611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59562 + ... + 61902.

Almost surely, 2^142173612 is an apocalyptic number.

142173612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142173612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206302096).

142173612 is an abundant number, since it is smaller than the sum of its proper divisors (270430580).

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

142173612 is a wasteful number, since it uses less digits than its factorization.

142173612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599 (or 2594 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 142173612 is about 11923.6576602987. The cubic root of 142173612 is about 521.9228758211.

The spelling of 142173612 in words is "one hundred forty-two million, one hundred seventy-three thousand, six hundred twelve".