1229487983 has 2 divisors, whose sum is σ = 1229487984. Its totient is φ = 1229487982.

The previous prime is 1229487893. The next prime is 1229488003. The reversal of 1229487983 is 3897849221.

Together with previous prime (1229487893) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1229487983 - 2¹² = 1229483887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229417983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614743991 + 614743992.

It is an arithmetic number, because the mean of its divisors is an integer number (614743992).

Almost surely, 2^1229487983 is an apocalyptic number.

1229487983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229487983 is an equidigital number, since it uses as much as digits as its factorization.

1229487983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 53.

The square root of 1229487983 is about 35064.0554271750. The cubic root of 1229487983 is about 1071.2925780148.

The spelling of 1229487983 in words is "one billion, two hundred twenty-nine million, four hundred eighty-seven thousand, nine hundred eighty-three".