142540155520 has 64 divisors (see below), whose sum is σ = 389440080000. Its totient is φ = 48870908928.

The previous prime is 142540155427. The next prime is 142540155547. The reversal of 142540155520 is 25551045241.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 15904020 + ... + 15912979.

It is an arithmetic number, because the mean of its divisors is an integer number (6085001250).

Almost surely, 2^142540155520 is an apocalyptic number.

142540155520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142540155520 is an abundant number, since it is smaller than the sum of its proper divisors (246899924480).

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

142540155520 is an equidigital number, since it uses as much as digits as its factorization.

142540155520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31817025 (or 31817013 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 142540155520 in words is "one hundred forty-two billion, five hundred forty million, one hundred fifty-five thousand, five hundred twenty".