264186413 has 2 divisors, whose sum is σ = 264186414. Its totient is φ = 264186412.

The previous prime is 264186361. The next prime is 264186421. The reversal of 264186413 is 314681462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236329129 + 27857284 = 15373^2 + 5278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264186413 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 (264186473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132093206 + 132093207.

It is an arithmetic number, because the mean of its divisors is an integer number (132093207).

Almost surely, 2^264186413 is an apocalyptic number.

It is an amenable number.

264186413 is a deficient number, since it is larger than the sum of its proper divisors (1).

264186413 is an equidigital number, since it uses as much as digits as its factorization.

264186413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 264186413 is about 16253.8122605129. The cubic root of 264186413 is about 641.6578219129.

The spelling of 264186413 in words is "two hundred sixty-four million, one hundred eighty-six thousand, four hundred thirteen".