1206124489 has 2 divisors, whose sum is σ = 1206124490. Its totient is φ = 1206124488.

The previous prime is 1206124487. The next prime is 1206124559. The reversal of 1206124489 is 9844216021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1029447225 + 176677264 = 32085^2 + 13292^2 .

It is a cyclic number.

It is not a de Polignac number, because 1206124489 - 2¹ = 1206124487 is a prime.

It is a super-2 number, since 2×1206124489² = 2909472565931022242, which contains 22 as substring.

Together with 1206124487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1206124487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603062244 + 603062245.

It is an arithmetic number, because the mean of its divisors is an integer number (603062245).

Almost surely, 2^1206124489 is an apocalyptic number.

It is an amenable number.

1206124489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206124489 is an equidigital number, since it uses as much as digits as its factorization.

1206124489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1206124489 is about 34729.3030307261. The cubic root of 1206124489 is about 1064.4633469272.

The spelling of 1206124489 in words is "one billion, two hundred six million, one hundred twenty-four thousand, four hundred eighty-nine".