13897542 has 32 divisors (see below), whose sum is σ = 28514304. Its totient is φ = 4514400.

The previous prime is 13897523. The next prime is 13897547. The reversal of 13897542 is 24579831.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 13897542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13897547) 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 15 ways as a sum of consecutive naturals, for example, 72667 + ... + 72857.

It is an arithmetic number, because the mean of its divisors is an integer number (891072).

Almost surely, 2^13897542 is an apocalyptic number.

13897542 is an abundant number, since it is smaller than the sum of its proper divisors (14616762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13897542 is a wasteful number, since it uses less digits than its factorization.

13897542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444.

The product of its digits is 60480, while the sum is 39.

The square root of 13897542 is about 3727.9407184128. The cubic root of 13897542 is about 240.4248378042.

The spelling of 13897542 in words is "thirteen million, eight hundred ninety-seven thousand, five hundred forty-two".