326696129 has 2 divisors, whose sum is σ = 326696130. Its totient is φ = 326696128.

The previous prime is 326696003. The next prime is 326696137. The reversal of 326696129 is 921696623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283989904 + 42706225 = 16852^2 + 6535^2 .

It is an emirp because it is prime and its reverse (921696623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 326696129 - 2¹⁶ = 326630593 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 326696129.

It is not a weakly prime, because it can be changed into another prime (326696189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163348064 + 163348065.

It is an arithmetic number, because the mean of its divisors is an integer number (163348065).

Almost surely, 2^326696129 is an apocalyptic number.

It is an amenable number.

326696129 is a deficient number, since it is larger than the sum of its proper divisors (1).

326696129 is an equidigital number, since it uses as much as digits as its factorization.

326696129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 44.

The square root of 326696129 is about 18074.7373148270. The cubic root of 326696129 is about 688.7284071785.

The spelling of 326696129 in words is "three hundred twenty-six million, six hundred ninety-six thousand, one hundred twenty-nine".