45111155 has 8 divisors (see below), whose sum is σ = 54253584. Its totient is φ = 36008800.

The previous prime is 45111151. The next prime is 45111179. The reversal of 45111155 is 55111154.

45111155 is nontrivially palindromic in base 14.

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

It is not a de Polignac number, because 45111155 - 2² = 45111151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45111155.

It is not an unprimeable number, because it can be changed into a prime (45111151) 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, 7481 + ... + 12090.

It is an arithmetic number, because the mean of its divisors is an integer number (6781698).

Almost surely, 2^45111155 is an apocalyptic number.

45111155 is a deficient number, since it is larger than the sum of its proper divisors (9142429).

45111155 is a wasteful number, since it uses less digits than its factorization.

45111155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20037.

The product of its digits is 500, while the sum is 23.

The square root of 45111155 is about 6716.4838271226. The cubic root of 45111155 is about 355.9819536995.

Subtracting 45111155 from its reverse (55111154), we obtain a palindrome (9999999).

The spelling of 45111155 in words is "forty-five million, one hundred eleven thousand, one hundred fifty-five".