13940063 has 4 divisors (see below), whose sum is σ = 13956768. Its totient is φ = 13923360.

The previous prime is 13940057. The next prime is 13940117. The reversal of 13940063 is 36004931.

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 13940063 - 2¹⁸ = 13677919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13940023) 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, 7031 + ... + 8792.

It is an arithmetic number, because the mean of its divisors is an integer number (3489192).

Almost surely, 2^13940063 is an apocalyptic number.

13940063 is a deficient number, since it is larger than the sum of its proper divisors (16705).

13940063 is an equidigital number, since it uses as much as digits as its factorization.

13940063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16704.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 13940063 is about 3733.6393773368. The cubic root of 13940063 is about 240.6697898970.

Adding to 13940063 its reverse (36004931), we get a palindrome (49944994).

The spelling of 13940063 in words is "thirteen million, nine hundred forty thousand, sixty-three".