11481451 has 2 divisors, whose sum is σ = 11481452. Its totient is φ = 11481450.

The previous prime is 11481427. The next prime is 11481461. The reversal of 11481451 is 15418411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11481451 is a prime.

It is not a weakly prime, because it can be changed into another prime (11481401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5740725 + 5740726.

It is an arithmetic number, because the mean of its divisors is an integer number (5740726).

Almost surely, 2^11481451 is an apocalyptic number.

11481451 is a deficient number, since it is larger than the sum of its proper divisors (1).

11481451 is an equidigital number, since it uses as much as digits as its factorization.

11481451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640, while the sum is 25.

The square root of 11481451 is about 3388.4289870086. The cubic root of 11481451 is about 225.5964487625.

Adding to 11481451 its reverse (15418411), we get a palindrome (26899862).

The spelling of 11481451 in words is "eleven million, four hundred eighty-one thousand, four hundred fifty-one".