1230066251 has 4 divisors (see below), whose sum is σ = 1294806600. Its totient is φ = 1165325904.

The previous prime is 1230066223. The next prime is 1230066287. The reversal of 1230066251 is 1526600321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1526600321 = 23 ⋅66373927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230066251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230066251.

It is not an unprimeable number, because it can be changed into a prime (1230056251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32370146 + ... + 32370183.

It is an arithmetic number, because the mean of its divisors is an integer number (323701650).

Almost surely, 2^1230066251 is an apocalyptic number.

1230066251 is a deficient number, since it is larger than the sum of its proper divisors (64740349).

1230066251 is an equidigital number, since it uses as much as digits as its factorization.

1230066251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64740348.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1230066251 is about 35072.3003380160. The cubic root of 1230066251 is about 1071.4605062168.

Adding to 1230066251 its reverse (1526600321), we get a palindrome (2756666572).

The spelling of 1230066251 in words is "one billion, two hundred thirty million, sixty-six thousand, two hundred fifty-one".