1230432149 has 2 divisors, whose sum is σ = 1230432150. Its totient is φ = 1230432148.

The previous prime is 1230432139. The next prime is 1230432163. The reversal of 1230432149 is 9412340321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081225924 + 149206225 = 32882^2 + 12215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230432149 is a prime.

It is a super-4 number, since 4×1230432149⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230432139) 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, 615216074 + 615216075.

It is an arithmetic number, because the mean of its divisors is an integer number (615216075).

Almost surely, 2^1230432149 is an apocalyptic number.

It is an amenable number.

1230432149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230432149 is an equidigital number, since it uses as much as digits as its factorization.

1230432149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1230432149 is about 35077.5162889279. The cubic root of 1230432149 is about 1071.5667352891.

The spelling of 1230432149 in words is "one billion, two hundred thirty million, four hundred thirty-two thousand, one hundred forty-nine".