45495019 has 2 divisors, whose sum is σ = 45495020. Its totient is φ = 45495018.

The previous prime is 45495017. The next prime is 45495029. The reversal of 45495019 is 91059454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45495019 - 2¹ = 45495017 is a prime.

It is a super-2 number, since 2×45495019² = 4139593507620722, which contains 22 as substring.

Together with 45495017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45495017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22747509 + 22747510.

It is an arithmetic number, because the mean of its divisors is an integer number (22747510).

Almost surely, 2^45495019 is an apocalyptic number.

45495019 is a deficient number, since it is larger than the sum of its proper divisors (1).

45495019 is an equidigital number, since it uses as much as digits as its factorization.

45495019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 45495019 is about 6744.9995552261. Note that the first 3 decimals coincide. The cubic root of 45495019 is about 356.9888213224.

The spelling of 45495019 in words is "forty-five million, four hundred ninety-five thousand, nineteen".