622131345 has 96 divisors (see below), whose sum is σ = 1281571200. Its totient is φ = 275788800.

The previous prime is 622131317. The next prime is 622131359. The reversal of 622131345 is 543131226.

622131345 is a `hidden beast` number, since 622 + 1 + 3 + 1 + 34 + 5 = 666.

It is not a de Polignac number, because 622131345 - 2¹² = 622127249 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 271605 + ... + 273885.

It is an arithmetic number, because the mean of its divisors is an integer number (13349700).

Almost surely, 2^622131345 is an apocalyptic number.

It is an amenable number.

622131345 is an abundant number, since it is smaller than the sum of its proper divisors (659439855).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622131345 is a wasteful number, since it uses less digits than its factorization.

622131345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351 (or 2348 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 622131345 is about 24942.5609150304. The cubic root of 622131345 is about 853.6778786309.

The spelling of 622131345 in words is "six hundred twenty-two million, one hundred thirty-one thousand, three hundred forty-five".