327138613 has 2 divisors, whose sum is σ = 327138614. Its totient is φ = 327138612.

The previous prime is 327138593. The next prime is 327138619. The reversal of 327138613 is 316831723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272349009 + 54789604 = 16503^2 + 7402^2 .

It is a cyclic number.

It is not a de Polignac number, because 327138613 - 2¹³ = 327130421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327138619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163569306 + 163569307.

It is an arithmetic number, because the mean of its divisors is an integer number (163569307).

Almost surely, 2^327138613 is an apocalyptic number.

It is an amenable number.

327138613 is a deficient number, since it is larger than the sum of its proper divisors (1).

327138613 is an equidigital number, since it uses as much as digits as its factorization.

327138613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 327138613 is about 18086.9735721596. The cubic root of 327138613 is about 689.0392095723.

The spelling of 327138613 in words is "three hundred twenty-seven million, one hundred thirty-eight thousand, six hundred thirteen".