3645500133 has 8 divisors (see below), whose sum is σ = 5302545696. Its totient is φ = 2209394000.

The previous prime is 3645500123. The next prime is 3645500137. The reversal of 3645500133 is 3310055463.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3645500133 - 2⁵ = 3645500101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3645500133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645500137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55234818 + ... + 55234883.

It is an arithmetic number, because the mean of its divisors is an integer number (662818212).

Almost surely, 2^3645500133 is an apocalyptic number.

3645500133 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3645500133 is a deficient number, since it is larger than the sum of its proper divisors (1657045563).

3645500133 is a wasteful number, since it uses less digits than its factorization.

3645500133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110469715.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 3645500133 is about 60377.9772185190. The cubic root of 3645500133 is about 1539.0487368887.

Adding to 3645500133 its reverse (3310055463), we get a palindrome (6955555596).

The spelling of 3645500133 in words is "three billion, six hundred forty-five million, five hundred thousand, one hundred thirty-three".