145520456153250 has 32 divisors (see below), whose sum is σ = 363219058560384. Its totient is φ = 38805454974000.

The previous prime is 145520456153239. The next prime is 145520456153357. The reversal of 145520456153250 is 52351654025541.

It is a self number, because there is not a number n which added to its sum of digits gives 145520456153250.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97013636686 + ... + 97013638185.

It is an arithmetic number, because the mean of its divisors is an integer number (11350595580012).

Almost surely, 2^{145520456153250} is an apocalyptic number.

145520456153250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145520456153250 is an abundant number, since it is smaller than the sum of its proper divisors (217698602407134).

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

145520456153250 is a wasteful number, since it uses less digits than its factorization.

145520456153250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194027274891 (or 194027274881 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 48.

The spelling of 145520456153250 in words is "one hundred forty-five trillion, five hundred twenty billion, four hundred fifty-six million, one hundred fifty-three thousand, two hundred fifty".