83120651 has 2 divisors, whose sum is σ = 83120652. Its totient is φ = 83120650.

The previous prime is 83120629. The next prime is 83120657. The reversal of 83120651 is 15602138.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83120651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83120651.

It is not a weakly prime, because it can be changed into another prime (83120657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41560325 + 41560326.

It is an arithmetic number, because the mean of its divisors is an integer number (41560326).

Almost surely, 2^83120651 is an apocalyptic number.

83120651 is a deficient number, since it is larger than the sum of its proper divisors (1).

83120651 is an equidigital number, since it uses as much as digits as its factorization.

83120651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 83120651 is about 9117.0527584302. The cubic root of 83120651 is about 436.4183255332.

Adding to 83120651 its reverse (15602138), we get a palindrome (98722789).

The spelling of 83120651 in words is "eighty-three million, one hundred twenty thousand, six hundred fifty-one".