13401573 has 4 divisors (see below), whose sum is σ = 17868768. Its totient is φ = 8934380.

The previous prime is 13401539. The next prime is 13401581. The reversal of 13401573 is 37510431.

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.

It is a cyclic number.

It is not a de Polignac number, because 13401573 - 2⁸ = 13401317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401503) 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, 2233593 + ... + 2233598.

It is an arithmetic number, because the mean of its divisors is an integer number (4467192).

Almost surely, 2^13401573 is an apocalyptic number.

It is an amenable number.

13401573 is a deficient number, since it is larger than the sum of its proper divisors (4467195).

13401573 is an equidigital number, since it uses as much as digits as its factorization.

13401573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467194.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 13401573 is about 3660.8158926666. The cubic root of 13401573 is about 237.5300674768.

The spelling of 13401573 in words is "thirteen million, four hundred one thousand, five hundred seventy-three".