73245413 has 4 divisors (see below), whose sum is σ = 73266348. Its totient is φ = 73224480.

The previous prime is 73245391. The next prime is 73245427. The reversal of 73245413 is 31454237.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31454237 = 823 ⋅38219.

It can be written as a sum of positive squares in 2 ways, for example, as 12061729 + 61183684 = 3473^2 + 7822^2 .

It is a cyclic number.

It is not a de Polignac number, because 73245413 - 2⁶ = 73245349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73245013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3806 + ... + 12687.

It is an arithmetic number, because the mean of its divisors is an integer number (18316587).

Almost surely, 2^73245413 is an apocalyptic number.

It is an amenable number.

73245413 is a deficient number, since it is larger than the sum of its proper divisors (20935).

73245413 is a wasteful number, since it uses less digits than its factorization.

73245413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20934.

The product of its digits is 10080, while the sum is 29.

The square root of 73245413 is about 8558.3534047152. The cubic root of 73245413 is about 418.4017355949.

The spelling of 73245413 in words is "seventy-three million, two hundred forty-five thousand, four hundred thirteen".