450111019 has 2 divisors, whose sum is σ = 450111020. Its totient is φ = 450111018.

The previous prime is 450110977. The next prime is 450111037. The reversal of 450111019 is 910111054.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450111019 is a prime.

It is a super-2 number, since 2×450111019² = 405199858850436722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (450111049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225055509 + 225055510.

It is an arithmetic number, because the mean of its divisors is an integer number (225055510).

Almost surely, 2^450111019 is an apocalyptic number.

450111019 is a deficient number, since it is larger than the sum of its proper divisors (1).

450111019 is an equidigital number, since it uses as much as digits as its factorization.

450111019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 450111019 is about 21215.8200171476. The cubic root of 450111019 is about 766.3724456614.

The spelling of 450111019 in words is "four hundred fifty million, one hundred eleven thousand, nineteen".