83120266 has 4 divisors (see below), whose sum is σ = 124680402. Its totient is φ = 41560132.

The previous prime is 83120263. The next prime is 83120281. The reversal of 83120266 is 66202138.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66202138 = 2 ⋅33101069.

It can be written as a sum of positive squares in only one way, i.e., 82283041 + 837225 = 9071^2 + 915^2 .

It is not an unprimeable number, because it can be changed into a prime (83120263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20780065 + ... + 20780068.

Almost surely, 2^83120266 is an apocalyptic number.

83120266 is a deficient number, since it is larger than the sum of its proper divisors (41560136).

83120266 is a wasteful number, since it uses less digits than its factorization.

83120266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41560135.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 83120266 is about 9117.0316441263. The cubic root of 83120266 is about 436.4176517283.

The spelling of 83120266 in words is "eighty-three million, one hundred twenty thousand, two hundred sixty-six".