145455020 has 12 divisors (see below), whose sum is σ = 305455584. Its totient is φ = 58182000.

The previous prime is 145454999. The next prime is 145455031. The reversal of 145455020 is 20554541.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3636356 + ... + 3636395.

It is an arithmetic number, because the mean of its divisors is an integer number (25454632).

Almost surely, 2^145455020 is an apocalyptic number.

145455020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145455020 is an abundant number, since it is smaller than the sum of its proper divisors (160000564).

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

145455020 is a wasteful number, since it uses less digits than its factorization.

145455020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7272760 (or 7272758 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 145455020 is about 12060.4734567097. The cubic root of 145455020 is about 525.9077507893.

The spelling of 145455020 in words is "one hundred forty-five million, four hundred fifty-five thousand, twenty".