13142661 has 16 divisors (see below), whose sum is σ = 21081600. Its totient is φ = 7114608.

The previous prime is 13142641. The next prime is 13142693. The reversal of 13142661 is 16624131.

It is not a de Polignac number, because 13142661 - 2⁹ = 13142149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13142621) 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, 16071 + ... + 16868.

It is an arithmetic number, because the mean of its divisors is an integer number (1317600).

Almost surely, 2^13142661 is an apocalyptic number.

It is an amenable number.

13142661 is a deficient number, since it is larger than the sum of its proper divisors (7938939).

13142661 is a wasteful number, since it uses less digits than its factorization.

13142661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32968.

The product of its digits is 864, while the sum is 24.

The square root of 13142661 is about 3625.2808167092. The cubic root of 13142661 is about 235.9904537458.

Adding to 13142661 its reverse (16624131), we get a palindrome (29766792).

The spelling of 13142661 in words is "thirteen million, one hundred forty-two thousand, six hundred sixty-one".