1234622189 has 2 divisors, whose sum is σ = 1234622190. Its totient is φ = 1234622188.

The previous prime is 1234622143. The next prime is 1234622201. The reversal of 1234622189 is 9812264321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 693268900 + 541353289 = 26330^2 + 23267^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234622189 - 2⁸ = 1234621933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1234652189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617311094 + 617311095.

It is an arithmetic number, because the mean of its divisors is an integer number (617311095).

Almost surely, 2^1234622189 is an apocalyptic number.

It is an amenable number.

1234622189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234622189 is an equidigital number, since it uses as much as digits as its factorization.

1234622189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 1234622189 is about 35137.1909662682. The cubic root of 1234622189 is about 1072.7817069430.

The spelling of 1234622189 in words is "one billion, two hundred thirty-four million, six hundred twenty-two thousand, one hundred eighty-nine".