142953272 has 144 divisors (see below), whose sum is σ = 362579280. Its totient is φ = 51701760.

The previous prime is 142953269. The next prime is 142953281. The reversal of 142953272 is 272359241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 1958228 + ... + 1958300.

Almost surely, 2^142953272 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 142953272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181289640).

142953272 is an abundant number, since it is smaller than the sum of its proper divisors (219626008).

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

142953272 is a wasteful number, since it uses less digits than its factorization.

142953272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 110 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 142953272 is about 11956.3067876330. The cubic root of 142953272 is about 522.8751875911.

The spelling of 142953272 in words is "one hundred forty-two million, nine hundred fifty-three thousand, two hundred seventy-two".