13144557 has 8 divisors (see below), whose sum is σ = 17543520. Its totient is φ = 8754320.

The previous prime is 13144543. The next prime is 13144577. The reversal of 13144557 is 75544131.

13144557 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 13144557 - 2¹² = 13140461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144577) 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, 3319 + ... + 6107.

It is an arithmetic number, because the mean of its divisors is an integer number (2192940).

Almost surely, 2^13144557 is an apocalyptic number.

It is an amenable number.

13144557 is a deficient number, since it is larger than the sum of its proper divisors (4398963).

13144557 is a wasteful number, since it uses less digits than its factorization.

13144557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363.

The product of its digits is 8400, while the sum is 30.

The square root of 13144557 is about 3625.5423042629. The cubic root of 13144557 is about 236.0018014322.

Adding to 13144557 its reverse (75544131), we get a palindrome (88688688).

The spelling of 13144557 in words is "thirteen million, one hundred forty-four thousand, five hundred fifty-seven".