45511145 has 4 divisors (see below), whose sum is σ = 54613380. Its totient is φ = 36408912.

The previous prime is 45511133. The next prime is 45511171. The reversal of 45511145 is 54111554.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24790441 + 20720704 = 4979^2 + 4552^2 .

It is a cyclic number.

It is not a de Polignac number, because 45511145 - 2¹⁰ = 45510121 is a prime.

It is a super-2 number, since 2×45511145² = 4142528638422050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4551110 + ... + 4551119.

It is an arithmetic number, because the mean of its divisors is an integer number (13653345).

Almost surely, 2^45511145 is an apocalyptic number.

It is an amenable number.

45511145 is a deficient number, since it is larger than the sum of its proper divisors (9102235).

45511145 is an equidigital number, since it uses as much as digits as its factorization.

45511145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9102234.

The product of its digits is 2000, while the sum is 26.

The square root of 45511145 is about 6746.1948533970. The cubic root of 45511145 is about 357.0309953290.

Adding to 45511145 its reverse (54111554), we get a palindrome (99622699).

The spelling of 45511145 in words is "forty-five million, five hundred eleven thousand, one hundred forty-five".