13032535144 has 8 divisors (see below), whose sum is σ = 24436003410. Its totient is φ = 6516267568.

The previous prime is 13032535141. The next prime is 13032535183. The reversal of 13032535144 is 44153523031.

It can be written as a sum of positive squares in only one way, i.e., 12959090244 + 73444900 = 113838^2 + 8570^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13032535141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814533439 + ... + 814533454.

Almost surely, 2^13032535144 is an apocalyptic number.

It is an amenable number.

13032535144 is a deficient number, since it is larger than the sum of its proper divisors (11403468266).

13032535144 is a wasteful number, since it uses less digits than its factorization.

13032535144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629066899 (or 1629066895 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 13032535144 in words is "thirteen billion, thirty-two million, five hundred thirty-five thousand, one hundred forty-four".