45185849 has 2 divisors, whose sum is σ = 45185850. Its totient is φ = 45185848.

The previous prime is 45185807. The next prime is 45185873. The reversal of 45185849 is 94858154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30030400 + 15155449 = 5480^2 + 3893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45185849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45185549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22592924 + 22592925.

It is an arithmetic number, because the mean of its divisors is an integer number (22592925).

Almost surely, 2^45185849 is an apocalyptic number.

It is an amenable number.

45185849 is a deficient number, since it is larger than the sum of its proper divisors (1).

45185849 is an equidigital number, since it uses as much as digits as its factorization.

45185849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 44.

The square root of 45185849 is about 6722.0420260513. The cubic root of 45185849 is about 356.1783209025.

The spelling of 45185849 in words is "forty-five million, one hundred eighty-five thousand, eight hundred forty-nine".