13709145 has 8 divisors (see below), whose sum is σ = 21934656. Its totient is φ = 7311536.

The previous prime is 13709117. The next prime is 13709149. The reversal of 13709145 is 54190731.

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 13709145 - 2¹⁴ = 13692761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13709149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456957 + ... + 456986.

It is an arithmetic number, because the mean of its divisors is an integer number (2741832).

Almost surely, 2^13709145 is an apocalyptic number.

13709145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13709145 is a deficient number, since it is larger than the sum of its proper divisors (8225511).

13709145 is an equidigital number, since it uses as much as digits as its factorization.

13709145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913951.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 13709145 is about 3702.5862582795. The cubic root of 13709145 is about 239.3334805405. Note that the first 3 decimals are identical.

Adding to 13709145 its reverse (54190731), we get a palindrome (67899876).

The spelling of 13709145 in words is "thirteen million, seven hundred nine thousand, one hundred forty-five".