13709501 has 4 divisors (see below), whose sum is σ = 14764092. Its totient is φ = 12654912.

The previous prime is 13709491. The next prime is 13709513. The reversal of 13709501 is 10590731.

13709501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2325625 + 11383876 = 1525^2 + 3374^2 .

It is a cyclic number.

It is not a de Polignac number, because 13709501 - 2¹⁴ = 13693117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13709551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527276 + ... + 527301.

It is an arithmetic number, because the mean of its divisors is an integer number (3691023).

Almost surely, 2^13709501 is an apocalyptic number.

It is an amenable number.

13709501 is a deficient number, since it is larger than the sum of its proper divisors (1054591).

13709501 is a wasteful number, since it uses less digits than its factorization.

13709501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054590.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 13709501 is about 3702.6343324719. The cubic root of 13709501 is about 239.3355521986.

The spelling of 13709501 in words is "thirteen million, seven hundred nine thousand, five hundred one".