146545447 has 4 divisors (see below), whose sum is σ = 146690280. Its totient is φ = 146400616.

The previous prime is 146545429. The next prime is 146545453. The reversal of 146545447 is 744545641.

146545447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146545447 - 2¹⁹ = 146021159 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146545417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70888 + ... + 72925.

It is an arithmetic number, because the mean of its divisors is an integer number (36672570).

Almost surely, 2^146545447 is an apocalyptic number.

146545447 is a deficient number, since it is larger than the sum of its proper divisors (144833).

146545447 is a wasteful number, since it uses less digits than its factorization.

146545447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144832.

The product of its digits is 268800, while the sum is 40.

The square root of 146545447 is about 12105.5956895974. The cubic root of 146545447 is about 527.2186644719.

The spelling of 146545447 in words is "one hundred forty-six million, five hundred forty-five thousand, four hundred forty-seven".