1232561873 has 2 divisors, whose sum is σ = 1232561874. Its totient is φ = 1232561872.

The previous prime is 1232561753. The next prime is 1232561879. The reversal of 1232561873 is 3781652321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1182534544 + 50027329 = 34388^2 + 7073^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232561873 - 2³⁰ = 158820049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1232561879) 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 as a sum of consecutive naturals, namely, 616280936 + 616280937.

It is an arithmetic number, because the mean of its divisors is an integer number (616280937).

Almost surely, 2^1232561873 is an apocalyptic number.

It is an amenable number.

1232561873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232561873 is an equidigital number, since it uses as much as digits as its factorization.

1232561873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 38.

The square root of 1232561873 is about 35107.8605585701. The cubic root of 1232561873 is about 1072.1846282139.

The spelling of 1232561873 in words is "one billion, two hundred thirty-two million, five hundred sixty-one thousand, eight hundred seventy-three".