142271232 has 108 divisors (see below), whose sum is σ = 402860136. Its totient is φ = 44564480.

The previous prime is 142271231. The next prime is 142271251. The reversal of 142271232 is 232172241.

It is a super-2 number, since 2×142271232² = 40482206909595648, which contains 22 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (142271231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221632 + ... + 222272.

Almost surely, 2^142271232 is an apocalyptic number.

142271232 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 142271232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201430068).

142271232 is an abundant number, since it is smaller than the sum of its proper divisors (260588904).

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

142271232 is an equidigital number, since it uses as much as digits as its factorization.

142271232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 663 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 142271232 is about 11927.7505004087. The cubic root of 142271232 is about 522.0423036428.

The spelling of 142271232 in words is "one hundred forty-two million, two hundred seventy-one thousand, two hundred thirty-two".