1230896861 has 2 divisors, whose sum is σ = 1230896862. Its totient is φ = 1230896860.

The previous prime is 1230896839. The next prime is 1230896879. The reversal of 1230896861 is 1686980321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1177519225 + 53377636 = 34315^2 + 7306^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230896861 - 2¹⁰ = 1230895837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230896761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615448430 + 615448431.

It is an arithmetic number, because the mean of its divisors is an integer number (615448431).

Almost surely, 2^1230896861 is an apocalyptic number.

It is an amenable number.

1230896861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230896861 is an equidigital number, since it uses as much as digits as its factorization.

1230896861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 1230896861 is about 35084.1397357837. The cubic root of 1230896861 is about 1071.7016221099.

The spelling of 1230896861 in words is "one billion, two hundred thirty million, eight hundred ninety-six thousand, eight hundred sixty-one".