142891932 has 48 divisors (see below), whose sum is σ = 363081600. Its totient is φ = 43565760.

The previous prime is 142891907. The next prime is 142891937. The reversal of 142891932 is 239198241.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142891937) 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, 4194 + ... + 17417.

It is an arithmetic number, because the mean of its divisors is an integer number (7564200).

Almost surely, 2^142891932 is an apocalyptic number.

142891932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142891932 is an abundant number, since it is smaller than the sum of its proper divisors (220189668).

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

142891932 is a wasteful number, since it uses less digits than its factorization.

142891932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21666 (or 21664 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 142891932 is about 11953.7413390118. The cubic root of 142891932 is about 522.8003898336.

The spelling of 142891932 in words is "one hundred forty-two million, eight hundred ninety-one thousand, nine hundred thirty-two".