45409111 has 4 divisors (see below), whose sum is σ = 49537224. Its totient is φ = 41281000.

The previous prime is 45409109. The next prime is 45409123. The reversal of 45409111 is 11190454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45409111 - 2¹ = 45409109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45409151) 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, 2064040 + ... + 2064061.

It is an arithmetic number, because the mean of its divisors is an integer number (12384306).

Almost surely, 2^45409111 is an apocalyptic number.

45409111 is a deficient number, since it is larger than the sum of its proper divisors (4128113).

45409111 is a wasteful number, since it uses less digits than its factorization.

45409111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128112.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 45409111 is about 6738.6282728757. The cubic root of 45409111 is about 356.7639797160.

Adding to 45409111 its reverse (11190454), we get a palindrome (56599565).

The spelling of 45409111 in words is "forty-five million, four hundred nine thousand, one hundred eleven".