13251607 has 4 divisors (see below), whose sum is σ = 13949080. Its totient is φ = 12554136.

The previous prime is 13251547. The next prime is 13251647. The reversal of 13251607 is 70615231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70615231 = 757 ⋅93283.

It is not a de Polignac number, because 13251607 - 2⁷ = 13251479 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 (13251647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348708 + ... + 348745.

It is an arithmetic number, because the mean of its divisors is an integer number (3487270).

Almost surely, 2^13251607 is an apocalyptic number.

13251607 is a deficient number, since it is larger than the sum of its proper divisors (697473).

13251607 is an equidigital number, since it uses as much as digits as its factorization.

13251607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697472.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 13251607 is about 3640.2756763740. The cubic root of 13251607 is about 236.6407406192.

Adding to 13251607 its reverse (70615231), we get a palindrome (83866838).

The spelling of 13251607 in words is "thirteen million, two hundred fifty-one thousand, six hundred seven".