83212351 has 2 divisors, whose sum is σ = 83212352. Its totient is φ = 83212350.

The previous prime is 83212333. The next prime is 83212387. The reversal of 83212351 is 15321238.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83212351 - 2⁵ = 83212319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83212301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41606175 + 41606176.

It is an arithmetic number, because the mean of its divisors is an integer number (41606176).

Almost surely, 2^83212351 is an apocalyptic number.

83212351 is a deficient number, since it is larger than the sum of its proper divisors (1).

83212351 is an equidigital number, since it uses as much as digits as its factorization.

83212351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 83212351 is about 9122.0804096434. The cubic root of 83212351 is about 436.5787543888.

Adding to 83212351 its reverse (15321238), we get a palindrome (98533589).

The spelling of 83212351 in words is "eighty-three million, two hundred twelve thousand, three hundred fifty-one".