145454432 has 12 divisors (see below), whose sum is σ = 286363476. Its totient is φ = 72727200.

The previous prime is 145454381. The next prime is 145454447. The reversal of 145454432 is 234454541.

145454432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 4545451 = 145454432 / (1 + 4 + 5 + 4 + 5 + 4 + 4 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2272694 + ... + 2272757.

It is an arithmetic number, because the mean of its divisors is an integer number (23863623).

Almost surely, 2^145454432 is an apocalyptic number.

It is an amenable number.

145454432 is a deficient number, since it is larger than the sum of its proper divisors (140909044).

145454432 is an equidigital number, since it uses as much as digits as its factorization.

145454432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545461 (or 4545453 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 145454432 is about 12060.4490795327. The cubic root of 145454432 is about 525.9070421300.

The spelling of 145454432 in words is "one hundred forty-five million, four hundred fifty-four thousand, four hundred thirty-two".