624145223 has 6 divisors (see below), whose sum is σ = 675849744. Its totient is φ = 576133896.

The previous prime is 624145211. The next prime is 624145237. The reversal of 624145223 is 322541426.

It is a de Polignac number, because none of the positive numbers 2^k-624145223 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 (624145253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1846415 + ... + 1846752.

It is an arithmetic number, because the mean of its divisors is an integer number (112641624).

Almost surely, 2^624145223 is an apocalyptic number.

624145223 is a deficient number, since it is larger than the sum of its proper divisors (51704521).

624145223 is a wasteful number, since it uses less digits than its factorization.

624145223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693193 (or 3693180 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 624145223 is about 24982.8986108498. The cubic root of 624145223 is about 854.5980226839.

Adding to 624145223 its reverse (322541426), we get a palindrome (946686649).

The spelling of 624145223 in words is "six hundred twenty-four million, one hundred forty-five thousand, two hundred twenty-three".