45271019 has 2 divisors, whose sum is σ = 45271020. Its totient is φ = 45271018.

The previous prime is 45271013. The next prime is 45271021. The reversal of 45271019 is 91017254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45271019 - 2⁴ = 45271003 is a prime.

It is a super-2 number, since 2×45271019² = 4098930322596722, which contains 22 as substring.

Together with 45271021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 45270982 and 45271000.

It is not a weakly prime, because it can be changed into another prime (45271013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22635509 + 22635510.

It is an arithmetic number, because the mean of its divisors is an integer number (22635510).

Almost surely, 2^45271019 is an apocalyptic number.

45271019 is a deficient number, since it is larger than the sum of its proper divisors (1).

45271019 is an equidigital number, since it uses as much as digits as its factorization.

45271019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 45271019 is about 6728.3741721162. The cubic root of 45271019 is about 356.4019651661.

The spelling of 45271019 in words is "forty-five million, two hundred seventy-one thousand, nineteen".