142172604 has 96 divisors (see below), whose sum is σ = 423987200. Its totient is φ = 40357440.

The previous prime is 142172599. The next prime is 142172623. The reversal of 142172604 is 406271241.

142172604 is a `hidden beast` number, since 1 + 42 + 17 + 2 + 604 = 666.

142172604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136317 + ... + 137355.

Almost surely, 2^142172604 is an apocalyptic number.

142172604 is a gapful number since it is divisible by the number (14) 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 142172604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211993600).

142172604 is an abundant number, since it is smaller than the sum of its proper divisors (281814596).

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

142172604 is a wasteful number, since it uses less digits than its factorization.

142172604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 142172604 is about 11923.6153913148. The cubic root of 142172604 is about 521.9216423538.

The spelling of 142172604 in words is "one hundred forty-two million, one hundred seventy-two thousand, six hundred four".