545251451 has 2 divisors, whose sum is σ = 545251452. Its totient is φ = 545251450.

The previous prime is 545251361. The next prime is 545251477. The reversal of 545251451 is 154152545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545251451 is a prime.

It is not a weakly prime, because it can be changed into another prime (545257451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272625725 + 272625726.

It is an arithmetic number, because the mean of its divisors is an integer number (272625726).

Almost surely, 2^545251451 is an apocalyptic number.

545251451 is a deficient number, since it is larger than the sum of its proper divisors (1).

545251451 is an equidigital number, since it uses as much as digits as its factorization.

545251451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20000, while the sum is 32.

The square root of 545251451 is about 23350.6199275308. The cubic root of 545251451 is about 816.9565203154.

The spelling of 545251451 in words is "five hundred forty-five million, two hundred fifty-one thousand, four hundred fifty-one".