83133251 has 2 divisors, whose sum is σ = 83133252. Its totient is φ = 83133250.

The previous prime is 83133223. The next prime is 83133269. The reversal of 83133251 is 15233138.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83133251 - 2⁶ = 83133187 is a prime.

It is a super-2 number, since 2×83133251² = 13822274843658002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83133251.

It is not a weakly prime, because it can be changed into another prime (83133751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41566625 + 41566626.

It is an arithmetic number, because the mean of its divisors is an integer number (41566626).

Almost surely, 2^83133251 is an apocalyptic number.

83133251 is a deficient number, since it is larger than the sum of its proper divisors (1).

83133251 is an equidigital number, since it uses as much as digits as its factorization.

83133251 is an evil number, because the sum of its binary digits is even.

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

The square root of 83133251 is about 9117.7437450282. The cubic root of 83133251 is about 436.4403761829.

Adding to 83133251 its reverse (15233138), we get a palindrome (98366389).

The spelling of 83133251 in words is "eighty-three million, one hundred thirty-three thousand, two hundred fifty-one".