13485123 has 20 divisors (see below), whose sum is σ = 20260240. Its totient is φ = 8938512.

The previous prime is 13485119. The next prime is 13485127. The reversal of 13485123 is 32158431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13485119) and next prime (13485127).

It is not a de Polignac number, because 13485123 - 2² = 13485119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13485127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18186 + ... + 18912.

It is an arithmetic number, because the mean of its divisors is an integer number (1013012).

Almost surely, 2^13485123 is an apocalyptic number.

13485123 is a deficient number, since it is larger than the sum of its proper divisors (6775117).

13485123 is an equidigital number, since it uses as much as digits as its factorization.

13485123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968 (or 959 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 13485123 is about 3672.2095528442. The cubic root of 13485123 is about 238.0226598485.

The spelling of 13485123 in words is "thirteen million, four hundred eighty-five thousand, one hundred twenty-three".