83190551 has 2 divisors, whose sum is σ = 83190552. Its totient is φ = 83190550.

The previous prime is 83190533. The next prime is 83190559. The reversal of 83190551 is 15509138.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83190551 - 2¹⁴ = 83174167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83190559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41595275 + 41595276.

It is an arithmetic number, because the mean of its divisors is an integer number (41595276).

Almost surely, 2^83190551 is an apocalyptic number.

83190551 is a deficient number, since it is larger than the sum of its proper divisors (1).

83190551 is an equidigital number, since it uses as much as digits as its factorization.

83190551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 83190551 is about 9120.8854285097. The cubic root of 83190551 is about 436.5406260421.

Adding to 83190551 its reverse (15509138), we get a palindrome (98699689).

The spelling of 83190551 in words is "eighty-three million, one hundred ninety thousand, five hundred fifty-one".