45251145 has 12 divisors (see below), whose sum is σ = 78435396. Its totient is φ = 24133920.

The previous prime is 45251123. The next prime is 45251153. The reversal of 45251145 is 54115254.

45251145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 20331081 + 24920064 = 4509^2 + 4992^2 .

It is not a de Polignac number, because 45251145 - 2⁵ = 45251113 is a prime.

It is a super-2 number, since 2×45251145² = 4095332247622050, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 502746 + ... + 502835.

It is an arithmetic number, because the mean of its divisors is an integer number (6536283).

Almost surely, 2^45251145 is an apocalyptic number.

45251145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45251145 is a deficient number, since it is larger than the sum of its proper divisors (33184251).

45251145 is a wasteful number, since it uses less digits than its factorization.

45251145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005592 (or 1005589 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 45251145 is about 6726.8971301782. The cubic root of 45251145 is about 356.3498039854.

Adding to 45251145 its reverse (54115254), we get a palindrome (99366399).

The spelling of 45251145 in words is "forty-five million, two hundred fifty-one thousand, one hundred forty-five".