82151273 has 2 divisors, whose sum is σ = 82151274. Its totient is φ = 82151272.

The previous prime is 82151263. The next prime is 82151297. The reversal of 82151273 is 37215128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54567769 + 27583504 = 7387^2 + 5252^2 .

It is a cyclic number.

It is not a de Polignac number, because 82151273 - 2⁴ = 82151257 is a prime.

It is not a weakly prime, because it can be changed into another prime (82151203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41075636 + 41075637.

It is an arithmetic number, because the mean of its divisors is an integer number (41075637).

Almost surely, 2^82151273 is an apocalyptic number.

It is an amenable number.

82151273 is a deficient number, since it is larger than the sum of its proper divisors (1).

82151273 is an equidigital number, since it uses as much as digits as its factorization.

82151273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 82151273 is about 9063.7339435798. The cubic root of 82151273 is about 434.7151400513.

The spelling of 82151273 in words is "eighty-two million, one hundred fifty-one thousand, two hundred seventy-three".