1122551389 has 2 divisors, whose sum is σ = 1122551390. Its totient is φ = 1122551388.

The previous prime is 1122551377. The next prime is 1122551477. The reversal of 1122551389 is 9831552211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 615536100 + 507015289 = 24810^2 + 22517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122551389 - 2⁵ = 1122551357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122551189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561275694 + 561275695.

It is an arithmetic number, because the mean of its divisors is an integer number (561275695).

Almost surely, 2^1122551389 is an apocalyptic number.

It is an amenable number.

1122551389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122551389 is an equidigital number, since it uses as much as digits as its factorization.

1122551389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 37.

The square root of 1122551389 is about 33504.4980413078. The cubic root of 1122551389 is about 1039.2867980624.

The spelling of 1122551389 in words is "one billion, one hundred twenty-two million, five hundred fifty-one thousand, three hundred eighty-nine".