13942563 has 4 divisors (see below), whose sum is σ = 18590088. Its totient is φ = 9295040.

The previous prime is 13942553. The next prime is 13942571. The reversal of 13942563 is 36524931.

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

It is a cyclic number.

It is not a de Polignac number, because 13942563 - 2⁴ = 13942547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13942553) 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, 2323758 + ... + 2323763.

It is an arithmetic number, because the mean of its divisors is an integer number (4647522).

Almost surely, 2^13942563 is an apocalyptic number.

13942563 is a deficient number, since it is larger than the sum of its proper divisors (4647525).

13942563 is an equidigital number, since it uses as much as digits as its factorization.

13942563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647524.

The product of its digits is 19440, while the sum is 33.

The square root of 13942563 is about 3733.9741563112. The cubic root of 13942563 is about 240.6841762143.

The spelling of 13942563 in words is "thirteen million, nine hundred forty-two thousand, five hundred sixty-three".