2451231427 has 2 divisors, whose sum is σ = 2451231428. Its totient is φ = 2451231426.

The previous prime is 2451231359. The next prime is 2451231443. The reversal of 2451231427 is 7241321542.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2451231427 is a prime.

It is not a weakly prime, because it can be changed into another prime (2451231487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1225615713 + 1225615714.

It is an arithmetic number, because the mean of its divisors is an integer number (1225615714).

Almost surely, 2^2451231427 is an apocalyptic number.

2451231427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451231427 is an equidigital number, since it uses as much as digits as its factorization.

2451231427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 2451231427 is about 49509.9124115565. The cubic root of 2451231427 is about 1348.3255741567.

Adding to 2451231427 its reverse (7241321542), we get a palindrome (9692552969).

The spelling of 2451231427 in words is "two billion, four hundred fifty-one million, two hundred thirty-one thousand, four hundred twenty-seven".