142171952 has 80 divisors (see below), whose sum is σ = 324479232. Its totient is φ = 59719680.

The previous prime is 142171903. The next prime is 142171957. The reversal of 142171952 is 259171241.

142171952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142171957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108968 + ... + 110264.

Almost surely, 2^142171952 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 142171952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162239616).

142171952 is an abundant number, since it is smaller than the sum of its proper divisors (182307280).

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

142171952 is a wasteful number, since it uses less digits than its factorization.

142171952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1360 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 142171952 is about 11923.5880505828. The cubic root of 142171952 is about 521.9208445127.

The spelling of 142171952 in words is "one hundred forty-two million, one hundred seventy-one thousand, nine hundred fifty-two".