12023651 has 2 divisors, whose sum is σ = 12023652. Its totient is φ = 12023650.

The previous prime is 12023623. The next prime is 12023659. The reversal of 12023651 is 15632021.

It is a strong prime.

It is an emirp because it is prime and its reverse (15632021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12023651 is a prime.

It is a Chen prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (12023659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011825 + 6011826.

It is an arithmetic number, because the mean of its divisors is an integer number (6011826).

Almost surely, 2^12023651 is an apocalyptic number.

12023651 is a deficient number, since it is larger than the sum of its proper divisors (1).

12023651 is an equidigital number, since it uses as much as digits as its factorization.

12023651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12023651 is about 3467.5136625542. The cubic root of 12023651 is about 229.0931588961.

Adding to 12023651 its reverse (15632021), we get a palindrome (27655672).

The spelling of 12023651 in words is "twelve million, twenty-three thousand, six hundred fifty-one".