1213554283 has 2 divisors, whose sum is σ = 1213554284. Its totient is φ = 1213554282.

The previous prime is 1213554269. The next prime is 1213554323. The reversal of 1213554283 is 3824553121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213554283 - 2²¹ = 1211457131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213554253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606777141 + 606777142.

It is an arithmetic number, because the mean of its divisors is an integer number (606777142).

Almost surely, 2^1213554283 is an apocalyptic number.

1213554283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213554283 is an equidigital number, since it uses as much as digits as its factorization.

1213554283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 34.

The square root of 1213554283 is about 34836.1060252147. The cubic root of 1213554283 is about 1066.6445920019.

The spelling of 1213554283 in words is "one billion, two hundred thirteen million, five hundred fifty-four thousand, two hundred eighty-three".