146644423 has 4 divisors (see below), whose sum is σ = 146673288. Its totient is φ = 146615560.

The previous prime is 146644409. The next prime is 146644429. The reversal of 146644423 is 324446641.

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 146644423 - 2⁵ = 146644391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146644429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4561 + ... + 17722.

It is an arithmetic number, because the mean of its divisors is an integer number (36668322).

Almost surely, 2^146644423 is an apocalyptic number.

146644423 is a deficient number, since it is larger than the sum of its proper divisors (28865).

146644423 is an equidigital number, since it uses as much as digits as its factorization.

146644423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28864.

The product of its digits is 55296, while the sum is 34.

The square root of 146644423 is about 12109.6830264049. The cubic root of 146644423 is about 527.3373313024.

The spelling of 146644423 in words is "one hundred forty-six million, six hundred forty-four thousand, four hundred twenty-three".