1228877959 has 2 divisors, whose sum is σ = 1228877960. Its totient is φ = 1228877958.

The previous prime is 1228877941. The next prime is 1228877983. The reversal of 1228877959 is 9597788221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1228877959 - 2¹¹ = 1228875911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228877939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614438979 + 614438980.

It is an arithmetic number, because the mean of its divisors is an integer number (614438980).

Almost surely, 2^1228877959 is an apocalyptic number.

1228877959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228877959 is an equidigital number, since it uses as much as digits as its factorization.

1228877959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 58.

The square root of 1228877959 is about 35055.3556393313. The cubic root of 1228877959 is about 1071.1153708345.

The spelling of 1228877959 in words is "one billion, two hundred twenty-eight million, eight hundred seventy-seven thousand, nine hundred fifty-nine".