1226039959 has 2 divisors, whose sum is σ = 1226039960. Its totient is φ = 1226039958.

The previous prime is 1226039917. The next prime is 1226039963. The reversal of 1226039959 is 9599306221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1226039959 - 2²¹ = 1223942807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226039159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613019979 + 613019980.

It is an arithmetic number, because the mean of its divisors is an integer number (613019980).

Almost surely, 2^1226039959 is an apocalyptic number.

1226039959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226039959 is an equidigital number, since it uses as much as digits as its factorization.

1226039959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 1226039959 is about 35014.8534053764. The cubic root of 1226039959 is about 1070.2901821630.

The spelling of 1226039959 in words is "one billion, two hundred twenty-six million, thirty-nine thousand, nine hundred fifty-nine".