145624423 has 16 divisors (see below), whose sum is σ = 171212800. Its totient is φ = 123801048.

The previous prime is 145624403. The next prime is 145624429. The reversal of 145624423 is 324426541.

145624423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145624423 - 2¹³ = 145616231 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 (145624429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41890 + ... + 45232.

It is an arithmetic number, because the mean of its divisors is an integer number (10700800).

Almost surely, 2^145624423 is an apocalyptic number.

145624423 is a deficient number, since it is larger than the sum of its proper divisors (25588377).

145624423 is an equidigital number, since it uses as much as digits as its factorization.

145624423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491 (or 3477 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 145624423 is about 12067.4944789712. The cubic root of 145624423 is about 526.1118363019. Note that the first 3 decimals are identical.

The spelling of 145624423 in words is "one hundred forty-five million, six hundred twenty-four thousand, four hundred twenty-three".