142973020 has 24 divisors (see below), whose sum is σ = 305167968. Its totient is φ = 56251200.

The previous prime is 142973003. The next prime is 142973021. The reversal of 142973020 is 20379241.

It is a self number, because there is not a number n which added to its sum of digits gives 142973020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142973021) 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 7 ways as a sum of consecutive naturals, for example, 57376 + ... + 59815.

It is an arithmetic number, because the mean of its divisors is an integer number (12715332).

Almost surely, 2^142973020 is an apocalyptic number.

142973020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142973020 is an abundant number, since it is smaller than the sum of its proper divisors (162194948).

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

142973020 is a wasteful number, since it uses less digits than its factorization.

142973020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117261 (or 117259 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 142973020 is about 11957.1325994153. The cubic root of 142973020 is about 522.8992636724.

The spelling of 142973020 in words is "one hundred forty-two million, nine hundred seventy-three thousand, twenty".