122558623 has 4 divisors (see below), whose sum is σ = 133700328. Its totient is φ = 111416920.

The previous prime is 122558621. The next prime is 122558629. The reversal of 122558623 is 326855221.

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 122558623 - 2¹ = 122558621 is a prime.

It is a super-2 number, since 2×122558623² = 30041232143312258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122558621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5570836 + ... + 5570857.

It is an arithmetic number, because the mean of its divisors is an integer number (33425082).

Almost surely, 2^122558623 is an apocalyptic number.

122558623 is a deficient number, since it is larger than the sum of its proper divisors (11141705).

122558623 is a wasteful number, since it uses less digits than its factorization.

122558623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11141704.

The product of its digits is 28800, while the sum is 34.

The square root of 122558623 is about 11070.6198110133. The cubic root of 122558623 is about 496.7234054263.

The spelling of 122558623 in words is "one hundred twenty-two million, five hundred fifty-eight thousand, six hundred twenty-three".