622648145 has 48 divisors (see below), whose sum is σ = 921211200. Its totient is φ = 401708160.

The previous prime is 622648139. The next prime is 622648189. The reversal of 622648145 is 541846226.

622648145 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 622648145 - 2¹⁴ = 622631761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 622648099 and 622648108.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 842186 + ... + 842924.

It is an arithmetic number, because the mean of its divisors is an integer number (19191900).

Almost surely, 2^622648145 is an apocalyptic number.

It is an amenable number.

622648145 is a deficient number, since it is larger than the sum of its proper divisors (298563055).

622648145 is a wasteful number, since it uses less digits than its factorization.

622648145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 951 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

The square root of 622648145 is about 24952.9185667729. The cubic root of 622648145 is about 853.9141945502.

The spelling of 622648145 in words is "six hundred twenty-two million, six hundred forty-eight thousand, one hundred forty-five".