73645045 has 16 divisors (see below), whose sum is σ = 93240000. Its totient is φ = 55686528.

The previous prime is 73645043. The next prime is 73645049. The reversal of 73645045 is 54054637.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 73645045 - 2¹ = 73645043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73645045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73645043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69681 + ... + 70729.

It is an arithmetic number, because the mean of its divisors is an integer number (5827500).

Almost surely, 2^73645045 is an apocalyptic number.

It is an amenable number.

73645045 is a deficient number, since it is larger than the sum of its proper divisors (19594955).

73645045 is a wasteful number, since it uses less digits than its factorization.

73645045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 73645045 is about 8581.6691266909. The cubic root of 73645045 is about 419.1612987169.

The spelling of 73645045 in words is "seventy-three million, six hundred forty-five thousand, forty-five".