8325136381 has 2 divisors, whose sum is σ = 8325136382. Its totient is φ = 8325136380.

The previous prime is 8325136363. The next prime is 8325136399. The reversal of 8325136381 is 1836315238.

It is a balanced prime because it is at equal distance from previous prime (8325136363) and next prime (8325136399).

It can be written as a sum of positive squares in only one way, i.e., 8316528025 + 8608356 = 91195^2 + 2934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8325136381 is a prime.

It is a super-2 number, since 2×8325136381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8325136321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4162568190 + 4162568191.

It is an arithmetic number, because the mean of its divisors is an integer number (4162568191).

Almost surely, 2^8325136381 is an apocalyptic number.

It is an amenable number.

8325136381 is a deficient number, since it is larger than the sum of its proper divisors (1).

8325136381 is an equidigital number, since it uses as much as digits as its factorization.

8325136381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 8325136381 is about 91242.1853146887. The cubic root of 8325136381 is about 2026.7357068537.

The spelling of 8325136381 in words is "eight billion, three hundred twenty-five million, one hundred thirty-six thousand, three hundred eighty-one".