12142451 has 2 divisors, whose sum is σ = 12142452. Its totient is φ = 12142450.

The previous prime is 12142439. The next prime is 12142499. The reversal of 12142451 is 15424121.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (15424121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12142451 - 2¹⁰ = 12141427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12142411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071225 + 6071226.

It is an arithmetic number, because the mean of its divisors is an integer number (6071226).

Almost surely, 2^12142451 is an apocalyptic number.

12142451 is a deficient number, since it is larger than the sum of its proper divisors (1).

12142451 is an equidigital number, since it uses as much as digits as its factorization.

12142451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 320, while the sum is 20.

The square root of 12142451 is about 3484.6019858802. The cubic root of 12142451 is about 229.8452077559.

Adding to 12142451 its reverse (15424121), we get a palindrome (27566572).

The spelling of 12142451 in words is "twelve million, one hundred forty-two thousand, four hundred fifty-one".