1213254059 has 2 divisors, whose sum is σ = 1213254060. Its totient is φ = 1213254058.

The previous prime is 1213254047. The next prime is 1213254109. The reversal of 1213254059 is 9504523121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213254059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213254019) 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, 606627029 + 606627030.

It is an arithmetic number, because the mean of its divisors is an integer number (606627030).

Almost surely, 2^1213254059 is an apocalyptic number.

1213254059 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213254059 is an equidigital number, since it uses as much as digits as its factorization.

1213254059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1213254059 is about 34831.7966662646. The cubic root of 1213254059 is about 1066.5566248568.

The spelling of 1213254059 in words is "one billion, two hundred thirteen million, two hundred fifty-four thousand, fifty-nine".