13000073 has 4 divisors (see below), whose sum is σ = 13065600. Its totient is φ = 12934548.

The previous prime is 13000069. The next prime is 13000081. The reversal of 13000073 is 37000031.

It is a happy number.

13000073 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37000031 = 23 ⋅1608697.

It is a cyclic number.

It is not a de Polignac number, because 13000073 - 2² = 13000069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13000973) 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, 32465 + ... + 32862.

It is an arithmetic number, because the mean of its divisors is an integer number (3266400).

Almost surely, 2^13000073 is an apocalyptic number.

It is an amenable number.

13000073 is a deficient number, since it is larger than the sum of its proper divisors (65527).

13000073 is an equidigital number, since it uses as much as digits as its factorization.

13000073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65526.

The product of its (nonzero) digits is 63, while the sum is 14.

The square root of 13000073 is about 3605.5613987284. The cubic root of 13000073 is about 235.1339088929.

The spelling of 13000073 in words is "thirteen million, seventy-three", and thus it is an aban number and an uban number.