1232404981 has 2 divisors, whose sum is σ = 1232404982. Its totient is φ = 1232404980.

The previous prime is 1232404973. The next prime is 1232405059. The reversal of 1232404981 is 1894042321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 878588881 + 353816100 = 29641^2 + 18810^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232404981 - 2³ = 1232404973 is a prime.

It is a super-2 number, since 2×1232404981² = 3037644074387220722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232404931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616202490 + 616202491.

It is an arithmetic number, because the mean of its divisors is an integer number (616202491).

Almost surely, 2^1232404981 is an apocalyptic number.

It is an amenable number.

1232404981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232404981 is an equidigital number, since it uses as much as digits as its factorization.

1232404981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1232404981 is about 35105.6260590806. The cubic root of 1232404981 is about 1072.1391337219.

The spelling of 1232404981 in words is "one billion, two hundred thirty-two million, four hundred four thousand, nine hundred eighty-one".