18775045 has 8 divisors (see below), whose sum is σ = 22708224. Its totient is φ = 14901264.

The previous prime is 18775033. The next prime is 18775049. The reversal of 18775045 is 54057781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18775045 - 2⁹ = 18774533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18774995 and 18775013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18775049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14149 + ... + 15418.

It is an arithmetic number, because the mean of its divisors is an integer number (2838528).

Almost surely, 2^18775045 is an apocalyptic number.

It is an amenable number.

18775045 is a deficient number, since it is larger than the sum of its proper divisors (3933179).

18775045 is a wasteful number, since it uses less digits than its factorization.

18775045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29699.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 18775045 is about 4333.0180013473. The cubic root of 18775045 is about 265.7828753747.

The spelling of 18775045 in words is "eighteen million, seven hundred seventy-five thousand, forty-five".