1230997959 has 8 divisors (see below), whose sum is σ = 1823700720. Its totient is φ = 820665288.

The previous prime is 1230997939. The next prime is 1230997967. The reversal of 1230997959 is 9597990321.

It is not a de Polignac number, because 1230997959 - 2⁹ = 1230997447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230997939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22796232 + ... + 22796285.

It is an arithmetic number, because the mean of its divisors is an integer number (227962590).

Almost surely, 2^1230997959 is an apocalyptic number.

1230997959 is a deficient number, since it is larger than the sum of its proper divisors (592702761).

1230997959 is an equidigital number, since it uses as much as digits as its factorization.

1230997959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45592526 (or 45592520 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The square root of 1230997959 is about 35085.5804996868. The cubic root of 1230997959 is about 1071.7309622135.

The spelling of 1230997959 in words is "one billion, two hundred thirty million, nine hundred ninety-seven thousand, nine hundred fifty-nine".