451820099 has 2 divisors, whose sum is σ = 451820100. Its totient is φ = 451820098.

The previous prime is 451820093. The next prime is 451820111. The reversal of 451820099 is 990028154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 451820099 - 2¹² = 451816003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (451820093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225910049 + 225910050.

It is an arithmetic number, because the mean of its divisors is an integer number (225910050).

Almost surely, 2^451820099 is an apocalyptic number.

451820099 is a deficient number, since it is larger than the sum of its proper divisors (1).

451820099 is an equidigital number, since it uses as much as digits as its factorization.

451820099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 451820099 is about 21256.0602887741. The cubic root of 451820099 is about 767.3411974318.

The spelling of 451820099 in words is "four hundred fifty-one million, eight hundred twenty thousand, ninety-nine".