13169642 has 8 divisors (see below), whose sum is σ = 19804932. Its totient is φ = 6568000.

The previous prime is 13169609. The next prime is 13169657. The reversal of 13169642 is 24696131.

It is a Cunningham number, because it is equal to 3629²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 13169641 + 1 = 3629^2 + 1^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13169599 and 13169608.

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, 7409 + ... + 9012.

Almost surely, 2^13169642 is an apocalyptic number.

13169642 is a deficient number, since it is larger than the sum of its proper divisors (6635290).

13169642 is a wasteful number, since it uses less digits than its factorization.

13169642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16824.

The product of its digits is 7776, while the sum is 32.

The square root of 13169642 is about 3629.0001377790. Note that the first 3 decimals coincide. The cubic root of 13169642 is about 236.1518342103.

The spelling of 13169642 in words is "thirteen million, one hundred sixty-nine thousand, six hundred forty-two".