142945320 has 128 divisors (see below), whose sum is σ = 493516800. Its totient is φ = 32445696.

The previous prime is 142945307. The next prime is 142945343. The reversal of 142945320 is 23549241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139771 + ... + 140789.

It is an arithmetic number, because the mean of its divisors is an integer number (3855600).

Almost surely, 2^142945320 is an apocalyptic number.

142945320 is a gapful number since it is divisible by the number (10) 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 142945320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246758400).

142945320 is an abundant number, since it is smaller than the sum of its proper divisors (350571480).

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

142945320 is a wasteful number, since it uses less digits than its factorization.

142945320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1203 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 142945320 is about 11955.9742388481. The cubic root of 142945320 is about 522.8654921605.

The spelling of 142945320 in words is "one hundred forty-two million, nine hundred forty-five thousand, three hundred twenty".