13542401 has 4 divisors (see below), whose sum is σ = 13797972. Its totient is φ = 13286832.

The previous prime is 13542379. The next prime is 13542413. The reversal of 13542401 is 10424531.

It is a Cunningham number, because it is equal to 3680²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9759376 + 3783025 = 3124^2 + 1945^2 .

It is a cyclic number.

It is not a de Polignac number, because 13542401 - 2¹⁰ = 13541377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13542491) 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, 127706 + ... + 127811.

It is an arithmetic number, because the mean of its divisors is an integer number (3449493).

Almost surely, 2^13542401 is an apocalyptic number.

It is an amenable number.

13542401 is a deficient number, since it is larger than the sum of its proper divisors (255571).

13542401 is an equidigital number, since it uses as much as digits as its factorization.

13542401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255570.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13542401 is about 3680.0001358696. Note that the first 3 decimals coincide. The cubic root of 13542401 is about 238.3591838990.

Adding to 13542401 its reverse (10424531), we get a palindrome (23966932).

The spelling of 13542401 in words is "thirteen million, five hundred forty-two thousand, four hundred one".