13931030 has 8 divisors (see below), whose sum is σ = 25075872. Its totient is φ = 5572408.

The previous prime is 13931023. The next prime is 13931039. The reversal of 13931030 is 3013931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13930993 and 13931011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13931039) 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, 696542 + ... + 696561.

It is an arithmetic number, because the mean of its divisors is an integer number (3134484).

Almost surely, 2^13931030 is an apocalyptic number.

13931030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13931030 is a deficient number, since it is larger than the sum of its proper divisors (11144842).

13931030 is a wasteful number, since it uses less digits than its factorization.

13931030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393110.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 13931030 is about 3732.4295036879. The cubic root of 13931030 is about 240.6177949155.

Adding to 13931030 its reverse (3013931), we get a palindrome (16944961).

The spelling of 13931030 in words is "thirteen million, nine hundred thirty-one thousand, thirty".