13502061 has 6 divisors (see below), whose sum is σ = 19502990. Its totient is φ = 9001368.

The previous prime is 13502011. The next prime is 13502089. The reversal of 13502061 is 16020531.

13502061 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12916836 + 585225 = 3594^2 + 765^2 .

It is not a de Polignac number, because 13502061 - 2¹⁴ = 13485677 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 (13502011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 750106 + ... + 750123.

Almost surely, 2^13502061 is an apocalyptic number.

It is an amenable number.

13502061 is a deficient number, since it is larger than the sum of its proper divisors (6000929).

13502061 is a wasteful number, since it uses less digits than its factorization.

13502061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500235 (or 1500232 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 13502061 is about 3674.5150700467. The cubic root of 13502061 is about 238.1222743400.

Adding to 13502061 its reverse (16020531), we get a palindrome (29522592).

The spelling of 13502061 in words is "thirteen million, five hundred two thousand, sixty-one".