13610143261 has 16 divisors (see below), whose sum is σ = 16072418880. Its totient is φ = 11361899520.

The previous prime is 13610143259. The next prime is 13610143279. The reversal of 13610143261 is 16234101631.

It is a cyclic number.

It is not a de Polignac number, because 13610143261 - 2¹ = 13610143259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13610143241) 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, 218971 + ... + 274168.

It is an arithmetic number, because the mean of its divisors is an integer number (1004526180).

Almost surely, 2^13610143261 is an apocalyptic number.

13610143261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13610143261 is a deficient number, since it is larger than the sum of its proper divisors (2462275619).

13610143261 is a wasteful number, since it uses less digits than its factorization.

13610143261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493356.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 13610143261 its reverse (16234101631), we get a palindrome (29844244892).

The spelling of 13610143261 in words is "thirteen billion, six hundred ten million, one hundred forty-three thousand, two hundred sixty-one".