142132921 has 8 divisors (see below), whose sum is σ = 163607360. Its totient is φ = 120950928.

The previous prime is 142132919. The next prime is 142132927. The reversal of 142132921 is 129231241.

142132921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142132921 - 2¹ = 142132919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142132927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72066 + ... + 74011.

It is an arithmetic number, because the mean of its divisors is an integer number (20450920).

Almost surely, 2^142132921 is an apocalyptic number.

It is an amenable number.

142132921 is a deficient number, since it is larger than the sum of its proper divisors (21474439).

142132921 is a wasteful number, since it uses less digits than its factorization.

142132921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146223.

The product of its digits is 864, while the sum is 25.

The square root of 142132921 is about 11921.9512245270. The cubic root of 142132921 is about 521.8730785113.

The spelling of 142132921 in words is "one hundred forty-two million, one hundred thirty-two thousand, nine hundred twenty-one".