1422145889 has 2 divisors, whose sum is σ = 1422145890. Its totient is φ = 1422145888.

The previous prime is 1422145859. The next prime is 1422145903. The reversal of 1422145889 is 9885412241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1421667025 + 478864 = 37705^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 1422145889 - 2²⁴ = 1405368673 is a prime.

It is not a weakly prime, because it can be changed into another prime (1422145849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711072944 + 711072945.

It is an arithmetic number, because the mean of its divisors is an integer number (711072945).

Almost surely, 2^1422145889 is an apocalyptic number.

It is an amenable number.

1422145889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422145889 is an equidigital number, since it uses as much as digits as its factorization.

1422145889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 44.

The square root of 1422145889 is about 37711.3496045952. The cubic root of 1422145889 is about 1124.5567673550.

The spelling of 1422145889 in words is "one billion, four hundred twenty-two million, one hundred forty-five thousand, eight hundred eighty-nine".