45894109 has 2 divisors, whose sum is σ = 45894110. Its totient is φ = 45894108.

The previous prime is 45894091. The next prime is 45894113. The reversal of 45894109 is 90149854.

Together with previous prime (45894091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45522009 + 372100 = 6747^2 + 610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45894109 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45894209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22947054 + 22947055.

It is an arithmetic number, because the mean of its divisors is an integer number (22947055).

Almost surely, 2^45894109 is an apocalyptic number.

It is an amenable number.

45894109 is a deficient number, since it is larger than the sum of its proper divisors (1).

45894109 is an equidigital number, since it uses as much as digits as its factorization.

45894109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 45894109 is about 6774.5190973234. The cubic root of 45894109 is about 358.0296392551.

The spelling of 45894109 in words is "forty-five million, eight hundred ninety-four thousand, one hundred nine".