13122507 has 8 divisors (see below), whose sum is σ = 17514640. Its totient is φ = 8739360.

The previous prime is 13122493. The next prime is 13122511. The reversal of 13122507 is 70522131.

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

It is not a de Polignac number, because 13122507 - 2⁷ = 13122379 is a prime.

It is the 3623-rd Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13122547) by changing a digit.

It is a nontrivial repunit in base 3622.

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, 2757 + ... + 5817.

It is an arithmetic number, because the mean of its divisors is an integer number (2189330).

Almost surely, 2^13122507 is an apocalyptic number.

13122507 is a deficient number, since it is larger than the sum of its proper divisors (4392133).

13122507 is a wasteful number, since it uses less digits than its factorization.

13122507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 13122507 is about 3622.5001035197. The cubic root of 13122507 is about 235.8697631989.

Adding to 13122507 its reverse (70522131), we get a palindrome (83644638).

The spelling of 13122507 in words is "thirteen million, one hundred twenty-two thousand, five hundred seven".