13213701 has 6 divisors (see below), whose sum is σ = 19086470. Its totient is φ = 8809128.

The previous prime is 13213691. The next prime is 13213703. The reversal of 13213701 is 10731231.

It can be written as a sum of positive squares in only one way, i.e., 11737476 + 1476225 = 3426^2 + 1215^2 .

It is not a de Polignac number, because 13213701 - 2¹⁰ = 13212677 is a prime.

It is a super-3 number, since 3×13213701³ (a number of 22 digits) contains 333 as substring.

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 (13213703) 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, 734086 + ... + 734103.

Almost surely, 2^13213701 is an apocalyptic number.

It is an amenable number.

13213701 is a deficient number, since it is larger than the sum of its proper divisors (5872769).

13213701 is a wasteful number, since it uses less digits than its factorization.

13213701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468195 (or 1468192 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 13213701 is about 3635.0654739633. The cubic root of 13213701 is about 236.4148895085.

Adding to 13213701 its reverse (10731231), we get a palindrome (23944932).

The spelling of 13213701 in words is "thirteen million, two hundred thirteen thousand, seven hundred one".