124622189 has 4 divisors (see below), whose sum is σ = 131952924. Its totient is φ = 117291456.

The previous prime is 124622171. The next prime is 124622209. The reversal of 124622189 is 981226421.

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 115197289 + 9424900 = 10733^2 + 3070^2 .

It is a cyclic number.

It is not a de Polignac number, because 124622189 - 2⁸ = 124621933 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 (124622129) 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, 3665342 + ... + 3665375.

It is an arithmetic number, because the mean of its divisors is an integer number (32988231).

Almost surely, 2^124622189 is an apocalyptic number.

It is an amenable number.

124622189 is a deficient number, since it is larger than the sum of its proper divisors (7330735).

124622189 is an equidigital number, since it uses as much as digits as its factorization.

124622189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330734.

The product of its digits is 13824, while the sum is 35.

The square root of 124622189 is about 11163.4308794385. The cubic root of 124622189 is about 499.4957436220.

The spelling of 124622189 in words is "one hundred twenty-four million, six hundred twenty-two thousand, one hundred eighty-nine".