3645140727 has 16 divisors (see below), whose sum is σ = 4874998752. Its totient is φ = 2422702080.

The previous prime is 3645140713. The next prime is 3645140771. The reversal of 3645140727 is 7270415463.

It is not a de Polignac number, because 3645140727 - 2⁷ = 3645140599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645120727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2147143 + ... + 2148839.

It is an arithmetic number, because the mean of its divisors is an integer number (304687422).

Almost surely, 2^3645140727 is an apocalyptic number.

3645140727 is a deficient number, since it is larger than the sum of its proper divisors (1229858025).

3645140727 is a wasteful number, since it uses less digits than its factorization.

3645140727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458.

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 3645140727 is about 60375.0008447205. Note that the first 3 decimals coincide. The cubic root of 3645140727 is about 1538.9981574978.

The spelling of 3645140727 in words is "three billion, six hundred forty-five million, one hundred forty thousand, seven hundred twenty-seven".