13123722 has 8 divisors (see below), whose sum is σ = 26247456. Its totient is φ = 4374572.

The previous prime is 13123697. The next prime is 13123727. The reversal of 13123722 is 22732131.

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

13123722 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13123727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093638 + ... + 1093649.

It is an arithmetic number, because the mean of its divisors is an integer number (3280932).

Almost surely, 2^13123722 is an apocalyptic number.

13123722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123722 is a wasteful number, since it uses less digits than its factorization.

13123722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187292.

The product of its digits is 504, while the sum is 21.

The square root of 13123722 is about 3622.6678014966. The cubic root of 13123722 is about 235.8770426239.

Adding to 13123722 its reverse (22732131), we get a palindrome (35855853).

The spelling of 13123722 in words is "thirteen million, one hundred twenty-three thousand, seven hundred twenty-two".