83136551 has 2 divisors, whose sum is σ = 83136552. Its totient is φ = 83136550.

The previous prime is 83136517. The next prime is 83136563. The reversal of 83136551 is 15563138.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83136551 is a prime.

It is a super-2 number, since 2×83136551² = 13823372224351202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_4841744 and since 83136551 and 4841744 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83126551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41568275 + 41568276.

It is an arithmetic number, because the mean of its divisors is an integer number (41568276).

Almost surely, 2^83136551 is an apocalyptic number.

83136551 is a deficient number, since it is larger than the sum of its proper divisors (1).

83136551 is an equidigital number, since it uses as much as digits as its factorization.

83136551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 83136551 is about 9117.9247090552. The cubic root of 83136551 is about 436.4461509849.

Adding to 83136551 its reverse (15563138), we get a palindrome (98699689).

The spelling of 83136551 in words is "eighty-three million, one hundred thirty-six thousand, five hundred fifty-one".