145053420 has 24 divisors (see below), whose sum is σ = 406149744. Its totient is φ = 38680896.

The previous prime is 145053413. The next prime is 145053487. The reversal of 145053420 is 24350541.

145053420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208719 + ... + 1208838.

It is an arithmetic number, because the mean of its divisors is an integer number (16922906).

Almost surely, 2^145053420 is an apocalyptic number.

145053420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145053420 is an abundant number, since it is smaller than the sum of its proper divisors (261096324).

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

145053420 is a wasteful number, since it uses less digits than its factorization.

145053420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417569 (or 2417567 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145053420 is about 12043.8125192980. The cubic root of 145053420 is about 525.4232958025.

The spelling of 145053420 in words is "one hundred forty-five million, fifty-three thousand, four hundred twenty".