13690061 has 18 divisors (see below), whose sum is σ = 17512110. Its totient is φ = 10662960.

The previous prime is 13690031. The next prime is 13690087. The reversal of 13690061 is 16009631.

13690061 is digitally balanced in base 2, because in such base 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., 13097161 + 592900 = 3619^2 + 770^2 .

It is not a de Polignac number, because 13690061 - 2⁶ = 13689997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13690061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13690031) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4775 + ... + 7083.

It is an arithmetic number, because the mean of its divisors is an integer number (972895).

Almost surely, 2^13690061 is an apocalyptic number.

13690061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13690061 is a deficient number, since it is larger than the sum of its proper divisors (3822049).

13690061 is a wasteful number, since it uses less digits than its factorization.

13690061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 13690061 is about 3700.0082432341. The cubic root of 13690061 is about 239.2223731697. Note that the first 3 decimals are identical.

Adding to 13690061 its reverse (16009631), we get a palindrome (29699692).

The spelling of 13690061 in words is "thirteen million, six hundred ninety thousand, sixty-one".