622157543 has 4 divisors (see below), whose sum is σ = 711037200. Its totient is φ = 533277888.

The previous prime is 622157539. The next prime is 622157573. The reversal of 622157543 is 345751226.

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

It is a cyclic number.

It is not a de Polignac number, because 622157543 - 2² = 622157539 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 (622157533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44439818 + ... + 44439831.

It is an arithmetic number, because the mean of its divisors is an integer number (177759300).

Almost surely, 2^622157543 is an apocalyptic number.

622157543 is a deficient number, since it is larger than the sum of its proper divisors (88879657).

622157543 is an equidigital number, since it uses as much as digits as its factorization.

622157543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88879656.

The product of its digits is 50400, while the sum is 35.

The square root of 622157543 is about 24943.0860761053. The cubic root of 622157543 is about 853.6898612770.

The spelling of 622157543 in words is "six hundred twenty-two million, one hundred fifty-seven thousand, five hundred forty-three".