13129669 has 8 divisors (see below), whose sum is σ = 15115968. Its totient is φ = 11171040.

The previous prime is 13129657. The next prime is 13129673. The reversal of 13129669 is 96692131.

13129669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13129669 - 2¹⁷ = 12998597 is a prime.

It is a super-3 number, since 3×13129669³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13129639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5887 + ... + 7804.

It is an arithmetic number, because the mean of its divisors is an integer number (1889496).

Almost surely, 2^13129669 is an apocalyptic number.

It is an amenable number.

13129669 is a deficient number, since it is larger than the sum of its proper divisors (1986299).

13129669 is a wasteful number, since it uses less digits than its factorization.

13129669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13835.

The product of its digits is 17496, while the sum is 37.

The square root of 13129669 is about 3623.4885124697. The cubic root of 13129669 is about 235.9126663832.

The spelling of 13129669 in words is "thirteen million, one hundred twenty-nine thousand, six hundred sixty-nine".