13503723 has 4 divisors (see below), whose sum is σ = 18004968. Its totient is φ = 9002480.

The previous prime is 13503713. The next prime is 13503733. The reversal of 13503723 is 32730531.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13503713) and next prime (13503733).

It is a cyclic number.

It is not a de Polignac number, because 13503723 - 2⁹ = 13503211 is a prime.

It is a super-3 number, since 3×13503723³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13503693 and 13503702.

It is not an unprimeable number, because it can be changed into a prime (13503713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2250618 + ... + 2250623.

It is an arithmetic number, because the mean of its divisors is an integer number (4501242).

Almost surely, 2^13503723 is an apocalyptic number.

13503723 is a deficient number, since it is larger than the sum of its proper divisors (4501245).

13503723 is an equidigital number, since it uses as much as digits as its factorization.

13503723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501244.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 13503723 is about 3674.7412153783. The cubic root of 13503723 is about 238.1320442801.

The spelling of 13503723 in words is "thirteen million, five hundred three thousand, seven hundred twenty-three".