73133653 has 2 divisors, whose sum is σ = 73133654. Its totient is φ = 73133652.

The previous prime is 73133651. The next prime is 73133729. The reversal of 73133653 is 35633137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44328964 + 28804689 = 6658^2 + 5367^2 .

It is an emirp because it is prime and its reverse (35633137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73133653 - 2¹ = 73133651 is a prime.

It is a super-2 number, since 2×73133653² = 10697062402248818, which contains 22 as substring.

Together with 73133651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73133651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36566826 + 36566827.

It is an arithmetic number, because the mean of its divisors is an integer number (36566827).

Almost surely, 2^73133653 is an apocalyptic number.

It is an amenable number.

73133653 is a deficient number, since it is larger than the sum of its proper divisors (1).

73133653 is an equidigital number, since it uses as much as digits as its factorization.

73133653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 31.

The square root of 73133653 is about 8551.8216188132. The cubic root of 73133653 is about 418.1888240549.

The spelling of 73133653 in words is "seventy-three million, one hundred thirty-three thousand, six hundred fifty-three".