1226374489 has 2 divisors, whose sum is σ = 1226374490. Its totient is φ = 1226374488.

The previous prime is 1226374427. The next prime is 1226374609. The reversal of 1226374489 is 9844736221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 823690000 + 402684489 = 28700^2 + 20067^2 .

It is an emirp because it is prime and its reverse (9844736221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226374489 is a prime.

It is a super-3 number, since 3×1226374489³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1226374889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613187244 + 613187245.

It is an arithmetic number, because the mean of its divisors is an integer number (613187245).

Almost surely, 2^1226374489 is an apocalyptic number.

It is an amenable number.

1226374489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226374489 is an equidigital number, since it uses as much as digits as its factorization.

1226374489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 1226374489 is about 35019.6300523007. The cubic root of 1226374489 is about 1070.3875176569.

The spelling of 1226374489 in words is "one billion, two hundred twenty-six million, three hundred seventy-four thousand, four hundred eighty-nine".