13072073 has 16 divisors (see below), whose sum is σ = 15916800. Its totient is φ = 10711008.

The previous prime is 13072067. The next prime is 13072091. The reversal of 13072073 is 37027031.

It is not a de Polignac number, because 13072073 - 2⁶ = 13072009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13072013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7061 + ... + 8717.

It is an arithmetic number, because the mean of its divisors is an integer number (994800).

Almost surely, 2^13072073 is an apocalyptic number.

It is an amenable number.

13072073 is a deficient number, since it is larger than the sum of its proper divisors (2844727).

13072073 is an equidigital number, since it uses as much as digits as its factorization.

13072073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 13072073 is about 3615.5321876592. The cubic root of 13072073 is about 235.5672008882.

The spelling of 13072073 in words is "thirteen million, seventy-two thousand, seventy-three".