13775129 has 8 divisors (see below), whose sum is σ = 14262528. Its totient is φ = 13290480.

The previous prime is 13775107. The next prime is 13775147. The reversal of 13775129 is 92157731.

It is a happy number.

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 13775129 - 2¹² = 13771033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13775149) 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, 17819 + ... + 18575.

It is an arithmetic number, because the mean of its divisors is an integer number (1782816).

Almost surely, 2^13775129 is an apocalyptic number.

It is an amenable number.

13775129 is a deficient number, since it is larger than the sum of its proper divisors (487399).

13775129 is an equidigital number, since it uses as much as digits as its factorization.

13775129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its digits is 13230, while the sum is 35.

The square root of 13775129 is about 3711.4860905034. The cubic root of 13775129 is about 239.7168477811.

The spelling of 13775129 in words is "thirteen million, seven hundred seventy-five thousand, one hundred twenty-nine".