83151281 has 2 divisors, whose sum is σ = 83151282. Its totient is φ = 83151280.

The previous prime is 83151259. The next prime is 83151283. The reversal of 83151281 is 18215138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52070656 + 31080625 = 7216^2 + 5575^2 .

It is a cyclic number.

It is not a de Polignac number, because 83151281 - 2¹⁸ = 82889137 is a prime.

It is a super-2 number, since 2×83151281² = 13828271063881922, which contains 22 as substring.

Together with 83151283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83151283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41575640 + 41575641.

It is an arithmetic number, because the mean of its divisors is an integer number (41575641).

Almost surely, 2^83151281 is an apocalyptic number.

It is an amenable number.

83151281 is a deficient number, since it is larger than the sum of its proper divisors (1).

83151281 is an equidigital number, since it uses as much as digits as its factorization.

83151281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 29.

The square root of 83151281 is about 9118.7324228755. The cubic root of 83151281 is about 436.4719257377.

The spelling of 83151281 in words is "eighty-three million, one hundred fifty-one thousand, two hundred eighty-one".