45571219 has 2 divisors, whose sum is σ = 45571220. Its totient is φ = 45571218.

The previous prime is 45571171. The next prime is 45571223. The reversal of 45571219 is 91217554.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45571219 - 2⁷ = 45571091 is a prime.

It is a super-2 number, since 2×45571219² = 4153472002291922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45571249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22785609 + 22785610.

It is an arithmetic number, because the mean of its divisors is an integer number (22785610).

Almost surely, 2^45571219 is an apocalyptic number.

45571219 is a deficient number, since it is larger than the sum of its proper divisors (1).

45571219 is an equidigital number, since it uses as much as digits as its factorization.

45571219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 34.

The square root of 45571219 is about 6750.6458209567. The cubic root of 45571219 is about 357.1880180377.

It can be divided in two parts, 4557 and 1219, that added together give a square (5776 = 76²).

The spelling of 45571219 in words is "forty-five million, five hundred seventy-one thousand, two hundred nineteen".