45171769 has 2 divisors, whose sum is σ = 45171770. Its totient is φ = 45171768.

The previous prime is 45171767. The next prime is 45171779. The reversal of 45171769 is 96717154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43731769 + 1440000 = 6613^2 + 1200^2 .

It is a cyclic number.

It is not a de Polignac number, because 45171769 - 2¹ = 45171767 is a prime.

It is a super-2 number, since 2×45171769² = 4080977429178722, which contains 22 as substring.

Together with 45171767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45171767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22585884 + 22585885.

It is an arithmetic number, because the mean of its divisors is an integer number (22585885).

Almost surely, 2^45171769 is an apocalyptic number.

It is an amenable number.

45171769 is a deficient number, since it is larger than the sum of its proper divisors (1).

45171769 is an equidigital number, since it uses as much as digits as its factorization.

45171769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 40.

The square root of 45171769 is about 6720.9946436521. The cubic root of 45171769 is about 356.1413217693.

The spelling of 45171769 in words is "forty-five million, one hundred seventy-one thousand, seven hundred sixty-nine".