13143602 has 8 divisors (see below), whose sum is σ = 19772316. Its totient is φ = 6552832.

The previous prime is 13143587. The next prime is 13143617. The reversal of 13143602 is 20634131.

It is an interprime number because it is at equal distance from previous prime (13143587) and next prime (13143617).

It can be written as a sum of positive squares in 2 ways, for example, as 12243001 + 900601 = 3499^2 + 949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8603 + ... + 10014.

Almost surely, 2^13143602 is an apocalyptic number.

13143602 is a deficient number, since it is larger than the sum of its proper divisors (6628714).

13143602 is a wasteful number, since it uses less digits than its factorization.

13143602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18972.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13143602 is about 3625.4105974358. The cubic root of 13143602 is about 235.9960858299.

Adding to 13143602 its reverse (20634131), we get a palindrome (33777733).

The spelling of 13143602 in words is "thirteen million, one hundred forty-three thousand, six hundred two".