13106731 has 8 divisors (see below), whose sum is σ = 14342400. Its totient is φ = 11878440.

The previous prime is 13106699. The next prime is 13106747. The reversal of 13106731 is 13760131.

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

It is a cyclic number.

It is not a de Polignac number, because 13106731 - 2⁵ = 13106699 is a prime.

It is a super-2 number, since 2×13106731² = 343572795012722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13106761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2290 + ... + 5608.

It is an arithmetic number, because the mean of its divisors is an integer number (1792800).

Almost surely, 2^13106731 is an apocalyptic number.

13106731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13106731 is a deficient number, since it is larger than the sum of its proper divisors (1235669).

13106731 is a wasteful number, since it uses less digits than its factorization.

13106731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 13106731 is about 3620.3219470097. The cubic root of 13106731 is about 235.7752036874.

Adding to 13106731 its reverse (13760131), we get a palindrome (26866862).

The spelling of 13106731 in words is "thirteen million, one hundred six thousand, seven hundred thirty-one".