13645401 has 32 divisors (see below), whose sum is σ = 23884800. Its totient is φ = 6713280.

The previous prime is 13645393. The next prime is 13645447. The reversal of 13645401 is 10454631.

It is not a de Polignac number, because 13645401 - 2³ = 13645393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13645451) 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 31 ways as a sum of consecutive naturals, for example, 2835 + ... + 5943.

It is an arithmetic number, because the mean of its divisors is an integer number (746400).

Almost surely, 2^13645401 is an apocalyptic number.

13645401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13645401 is a deficient number, since it is larger than the sum of its proper divisors (10239399).

13645401 is a wasteful number, since it uses less digits than its factorization.

13645401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 13645401 is about 3693.9681915252. The cubic root of 13645401 is about 238.9619577295.

The spelling of 13645401 in words is "thirteen million, six hundred forty-five thousand, four hundred one".