13423481 has 4 divisors (see below), whose sum is σ = 14130000. Its totient is φ = 12716964.

The previous prime is 13423453. The next prime is 13423483. The reversal of 13423481 is 18432431.

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: 18432431 = 61 ⋅302171.

It is a cyclic number.

It is not a de Polignac number, because 13423481 - 2²² = 9229177 is a prime.

It is a super-2 number, since 2×13423481² = 360379684314722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13423481.

It is not an unprimeable number, because it can be changed into a prime (13423483) 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, 353231 + ... + 353268.

It is an arithmetic number, because the mean of its divisors is an integer number (3532500).

Almost surely, 2^13423481 is an apocalyptic number.

It is an amenable number.

13423481 is a deficient number, since it is larger than the sum of its proper divisors (706519).

13423481 is an equidigital number, since it uses as much as digits as its factorization.

13423481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706518.

The product of its digits is 2304, while the sum is 26.

The square root of 13423481 is about 3663.8068999335. The cubic root of 13423481 is about 237.6594297956.

The spelling of 13423481 in words is "thirteen million, four hundred twenty-three thousand, four hundred eighty-one".