1230655133 has 2 divisors, whose sum is σ = 1230655134. Its totient is φ = 1230655132.

The previous prime is 1230655123. The next prime is 1230655169. The reversal of 1230655133 is 3315560321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 854217529 + 376437604 = 29227^2 + 19402^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230655133 - 2⁴ = 1230655117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230655096 and 1230655105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230655103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615327566 + 615327567.

It is an arithmetic number, because the mean of its divisors is an integer number (615327567).

Almost surely, 2^1230655133 is an apocalyptic number.

It is an amenable number.

1230655133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230655133 is an equidigital number, since it uses as much as digits as its factorization.

1230655133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 1230655133 is about 35080.6945911850. The cubic root of 1230655133 is about 1071.6314626302.

The spelling of 1230655133 in words is "one billion, two hundred thirty million, six hundred fifty-five thousand, one hundred thirty-three".