451214551 has 2 divisors, whose sum is σ = 451214552. Its totient is φ = 451214550.

The previous prime is 451214503. The next prime is 451214587. The reversal of 451214551 is 155412154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451214551 - 2¹³ = 451206359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451214591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225607275 + 225607276.

It is an arithmetic number, because the mean of its divisors is an integer number (225607276).

Almost surely, 2^451214551 is an apocalyptic number.

451214551 is a deficient number, since it is larger than the sum of its proper divisors (1).

451214551 is an equidigital number, since it uses as much as digits as its factorization.

451214551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4000, while the sum is 28.

The square root of 451214551 is about 21241.8113869792. The cubic root of 451214551 is about 766.9982366903.

The spelling of 451214551 in words is "four hundred fifty-one million, two hundred fourteen thousand, five hundred fifty-one".