325402109 has 2 divisors, whose sum is σ = 325402110. Its totient is φ = 325402108.

The previous prime is 325402093. The next prime is 325402123. The reversal of 325402109 is 901204523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228674884 + 96727225 = 15122^2 + 9835^2 .

It is a cyclic number.

It is not a de Polignac number, because 325402109 - 2⁴ = 325402093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325402409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162701054 + 162701055.

It is an arithmetic number, because the mean of its divisors is an integer number (162701055).

Almost surely, 2^325402109 is an apocalyptic number.

It is an amenable number.

325402109 is a deficient number, since it is larger than the sum of its proper divisors (1).

325402109 is an equidigital number, since it uses as much as digits as its factorization.

325402109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 325402109 is about 18038.9054268822. The cubic root of 325402109 is about 687.8178692733.

The spelling of 325402109 in words is "three hundred twenty-five million, four hundred two thousand, one hundred nine".