45370219 has 2 divisors, whose sum is σ = 45370220. Its totient is φ = 45370218.

The previous prime is 45370201. The next prime is 45370261. The reversal of 45370219 is 91207354.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45370219 - 2⁵ = 45370187 is a prime.

It is a super-2 number, since 2×45370219² = 4116913544215922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45370319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22685109 + 22685110.

It is an arithmetic number, because the mean of its divisors is an integer number (22685110).

Almost surely, 2^45370219 is an apocalyptic number.

45370219 is a deficient number, since it is larger than the sum of its proper divisors (1).

45370219 is an equidigital number, since it uses as much as digits as its factorization.

45370219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 45370219 is about 6735.7419042003. The cubic root of 45370219 is about 356.6620968737.

The spelling of 45370219 in words is "forty-five million, three hundred seventy thousand, two hundred nineteen".