73213061 has 8 divisors (see below), whose sum is σ = 77145600. Its totient is φ = 69288480.

The previous prime is 73213057. The next prime is 73213069. The reversal of 73213061 is 16031237.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 73213061 - 2² = 73213057 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 (73213069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31580 + ... + 33818.

It is an arithmetic number, because the mean of its divisors is an integer number (9643200).

Almost surely, 2^73213061 is an apocalyptic number.

It is an amenable number.

73213061 is a deficient number, since it is larger than the sum of its proper divisors (3932539).

73213061 is a wasteful number, since it uses less digits than its factorization.

73213061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3979.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 73213061 is about 8556.4631127587. The cubic root of 73213061 is about 418.3401247908.

Adding to 73213061 its reverse (16031237), we get a palindrome (89244298).

The spelling of 73213061 in words is "seventy-three million, two hundred thirteen thousand, sixty-one".