622225157 has 4 divisors (see below), whose sum is σ = 622890156. Its totient is φ = 621560160.

The previous prime is 622225147. The next prime is 622225159. The reversal of 622225157 is 751522226.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22905796 + 599319361 = 4786^2 + 24481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622225157 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 (622225159) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 331094 + ... + 332967.

It is an arithmetic number, because the mean of its divisors is an integer number (155722539).

Almost surely, 2^622225157 is an apocalyptic number.

It is an amenable number.

622225157 is a deficient number, since it is larger than the sum of its proper divisors (664999).

622225157 is an equidigital number, since it uses as much as digits as its factorization.

622225157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664998.

The product of its digits is 16800, while the sum is 32.

The square root of 622225157 is about 24944.4414048501. The cubic root of 622225157 is about 853.7207855426.

The spelling of 622225157 in words is "six hundred twenty-two million, two hundred twenty-five thousand, one hundred fifty-seven".