142520455220 has 96 divisors (see below), whose sum is σ = 355031389440. Its totient is φ = 47374479360.

The previous prime is 142520455169. The next prime is 142520455237. The reversal of 142520455220 is 22554025241.

It is a super-2 number, since 2×142520455220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 52676 + ... + 536484.

It is an arithmetic number, because the mean of its divisors is an integer number (3698243640).

Almost surely, 2^142520455220 is an apocalyptic number.

142520455220 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 142520455220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177515694720).

142520455220 is an abundant number, since it is smaller than the sum of its proper divisors (212510934220).

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

142520455220 is a wasteful number, since it uses less digits than its factorization.

142520455220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483945 (or 483943 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The spelling of 142520455220 in words is "one hundred forty-two billion, five hundred twenty million, four hundred fifty-five thousand, two hundred twenty".