13017641 has 16 divisors (see below), whose sum is σ = 16867200. Its totient is φ = 9756288.

The previous prime is 13017629. The next prime is 13017643. The reversal of 13017641 is 14671031.

It is a cyclic number.

It is not a de Polignac number, because 13017641 - 2⁶ = 13017577 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13017643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2036 + ... + 5493.

It is an arithmetic number, because the mean of its divisors is an integer number (1054200).

Almost surely, 2^13017641 is an apocalyptic number.

It is an amenable number.

13017641 is a deficient number, since it is larger than the sum of its proper divisors (3849559).

13017641 is a wasteful number, since it uses less digits than its factorization.

13017641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7568.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 13017641 is about 3607.9968126372. The cubic root of 13017641 is about 235.2397794044.

Adding to 13017641 its sum of digits (23), we get a square (13017664 = 3608²).

Adding to 13017641 its reverse (14671031), we get a palindrome (27688672).

It can be divided in two parts, 130 and 17641, that added together give a palindrome (17771).

The spelling of 13017641 in words is "thirteen million, seventeen thousand, six hundred forty-one".