13452491 has 16 divisors (see below), whose sum is σ = 15876000. Its totient is φ = 11278848.

The previous prime is 13452487. The next prime is 13452499. The reversal of 13452491 is 19425431.

13452491 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13452491 - 2² = 13452487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13452499) 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, 5360 + ... + 7458.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^13452491 is an apocalyptic number.

13452491 is a deficient number, since it is larger than the sum of its proper divisors (2423509).

13452491 is a wasteful number, since it uses less digits than its factorization.

13452491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158.

The product of its digits is 4320, while the sum is 29.

The square root of 13452491 is about 3667.7637601132. The cubic root of 13452491 is about 237.8305115827.

It can be divided in two parts, 134 and 52491, that added together give a palindrome (52625).

The spelling of 13452491 in words is "thirteen million, four hundred fifty-two thousand, four hundred ninety-one".