45155111 has 4 divisors (see below), whose sum is σ = 47811312. Its totient is φ = 42498912.

The previous prime is 45155107. The next prime is 45155113. The reversal of 45155111 is 11155154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11155154 = 2 ⋅5577577.

It is not a de Polignac number, because 45155111 - 2² = 45155107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45155113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328075 + ... + 1328108.

It is an arithmetic number, because the mean of its divisors is an integer number (11952828).

Almost surely, 2^45155111 is an apocalyptic number.

45155111 is a deficient number, since it is larger than the sum of its proper divisors (2656201).

45155111 is a wasteful number, since it uses less digits than its factorization.

45155111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656200.

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

The square root of 45155111 is about 6719.7552782821. The cubic root of 45155111 is about 356.0975382907.

The spelling of 45155111 in words is "forty-five million, one hundred fifty-five thousand, one hundred eleven".