623305145 has 16 divisors (see below), whose sum is σ = 769563840. Its totient is φ = 484294464.

The previous prime is 623305139. The next prime is 623305147. The reversal of 623305145 is 541503326.

623305145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 623305145 - 2⁸ = 623304889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (623305147) 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, 111794 + ... + 117236.

It is an arithmetic number, because the mean of its divisors is an integer number (48097740).

Almost surely, 2^623305145 is an apocalyptic number.

It is an amenable number.

623305145 is a deficient number, since it is larger than the sum of its proper divisors (146258695).

623305145 is a wasteful number, since it uses less digits than its factorization.

623305145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 623305145 is about 24966.0798885207. The cubic root of 623305145 is about 854.2144306848.

The spelling of 623305145 in words is "six hundred twenty-three million, three hundred five thousand, one hundred forty-five".