13918129 has 2 divisors, whose sum is σ = 13918130. Its totient is φ = 13918128.

The previous prime is 13918117. The next prime is 13918133. The reversal of 13918129 is 92181931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 2729104 = 3345^2 + 1652^2 .

It is a cyclic number.

It is not a de Polignac number, because 13918129 - 2²³ = 5529521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13918094 and 13918103.

It is not a weakly prime, because it can be changed into another prime (13918109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6959064 + 6959065.

It is an arithmetic number, because the mean of its divisors is an integer number (6959065).

Almost surely, 2^13918129 is an apocalyptic number.

It is an amenable number.

13918129 is a deficient number, since it is larger than the sum of its proper divisors (1).

13918129 is an equidigital number, since it uses as much as digits as its factorization.

13918129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 34.

The square root of 13918129 is about 3730.7008724903. The cubic root of 13918129 is about 240.5434962959.

The spelling of 13918129 in words is "thirteen million, nine hundred eighteen thousand, one hundred twenty-nine".