2045005451 has 2 divisors, whose sum is σ = 2045005452. Its totient is φ = 2045005450.

The previous prime is 2045005433. The next prime is 2045005471. The reversal of 2045005451 is 1545005402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2045005451 - 2⁶ = 2045005387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2045005451.

It is not a weakly prime, because it can be changed into another prime (2045005411) 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, 1022502725 + 1022502726.

It is an arithmetic number, because the mean of its divisors is an integer number (1022502726).

Almost surely, 2^2045005451 is an apocalyptic number.

2045005451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045005451 is an equidigital number, since it uses as much as digits as its factorization.

2045005451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2045005451 is about 45221.7364881093. The cubic root of 2045005451 is about 1269.3015878026.

The spelling of 2045005451 in words is "two billion, forty-five million, five thousand, four hundred fifty-one".