45005140 has 12 divisors (see below), whose sum is σ = 94510836. Its totient is φ = 18002048.

The previous prime is 45005123. The next prime is 45005153. The reversal of 45005140 is 4150054.

It can be written as a sum of positive squares in 2 ways, for example, as 26030404 + 18974736 = 5102^2 + 4356^2 .

It is a congruent number.

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, 1125109 + ... + 1125148.

It is an arithmetic number, because the mean of its divisors is an integer number (7875903).

Almost surely, 2^45005140 is an apocalyptic number.

It is an amenable number.

45005140 is an abundant number, since it is smaller than the sum of its proper divisors (49505696).

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

45005140 is a wasteful number, since it uses less digits than its factorization.

45005140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250266 (or 2250264 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 45005140 is about 6708.5870345401. The cubic root of 45005140 is about 355.7028724753.

Adding to 45005140 its reverse (4150054), we get a palindrome (49155194).

The spelling of 45005140 in words is "forty-five million, five thousand, one hundred forty".