45451145 has 4 divisors (see below), whose sum is σ = 54541380. Its totient is φ = 36360912.

The previous prime is 45451127. The next prime is 45451163. The reversal of 45451145 is 54115454.

45451145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (45451127) and next prime (45451163).

It can be written as a sum of positive squares in 2 ways, for example, as 36336784 + 9114361 = 6028^2 + 3019^2 .

It is a cyclic number.

It is not a de Polignac number, because 45451145 - 2¹⁰ = 45450121 is a prime.

It is a super-2 number, since 2×45451145² = 4131613163622050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4545110 + ... + 4545119.

It is an arithmetic number, because the mean of its divisors is an integer number (13635345).

Almost surely, 2^45451145 is an apocalyptic number.

It is an amenable number.

45451145 is a deficient number, since it is larger than the sum of its proper divisors (9090235).

45451145 is an equidigital number, since it uses as much as digits as its factorization.

45451145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9090234.

The product of its digits is 8000, while the sum is 29.

The square root of 45451145 is about 6741.7464354572. The cubic root of 45451145 is about 356.8740280593.

Adding to 45451145 its reverse (54115454), we get a palindrome (99566599).

It can be divided in two parts, 4545 and 1145, that multiplied together give a palindrome (5204025).

The spelling of 45451145 in words is "forty-five million, four hundred fifty-one thousand, one hundred forty-five".