4545140 has 12 divisors (see below), whose sum is σ = 9544836. Its totient is φ = 1818048.

The previous prime is 4545139. The next prime is 4545157. The reversal of 4545140 is 415454.

It can be written as a sum of positive squares in 2 ways, for example, as 2390116 + 2155024 = 1546^2 + 1468^2 .

It is a congruent number.

It is an unprimeable number.

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, 113609 + ... + 113648.

It is an arithmetic number, because the mean of its divisors is an integer number (795403).

Almost surely, 2^4545140 is an apocalyptic number.

It is an amenable number.

4545140 is an abundant number, since it is smaller than the sum of its proper divisors (4999696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4545140 is a wasteful number, since it uses less digits than its factorization.

4545140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227266 (or 227264 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 4545140 is about 2131.9333948320. The cubic root of 4545140 is about 165.6465601457.

The spelling of 4545140 in words is "four million, five hundred forty-five thousand, one hundred forty".