45559109 has 4 divisors (see below), whose sum is σ = 45572640. Its totient is φ = 45545580.

The previous prime is 45559097. The next prime is 45559139. The reversal of 45559109 is 90195554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 45559109 - 2¹⁶ = 45493573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45559139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702 + ... + 9920.

It is an arithmetic number, because the mean of its divisors is an integer number (11393160).

Almost surely, 2^45559109 is an apocalyptic number.

It is an amenable number.

45559109 is a deficient number, since it is larger than the sum of its proper divisors (13531).

45559109 is an equidigital number, since it uses as much as digits as its factorization.

45559109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13530.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 45559109 is about 6749.7488101410. The cubic root of 45559109 is about 357.1563757702.

It can be divided in two parts, 4555 and 9109, that multiplied together give a triangular number (41491495 = T₉₁₀₉).

The spelling of 45559109 in words is "forty-five million, five hundred fifty-nine thousand, one hundred nine".