82494157 has 2 divisors, whose sum is σ = 82494158. Its totient is φ = 82494156.

The previous prime is 82494151. The next prime is 82494163. The reversal of 82494157 is 75149428.

It is a balanced prime because it is at equal distance from previous prime (82494151) and next prime (82494163).

It can be written as a sum of positive squares in only one way, i.e., 63536841 + 18957316 = 7971^2 + 4354^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82494157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82494151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41247078 + 41247079.

It is an arithmetic number, because the mean of its divisors is an integer number (41247079).

Almost surely, 2^82494157 is an apocalyptic number.

It is an amenable number.

82494157 is a deficient number, since it is larger than the sum of its proper divisors (1).

82494157 is an equidigital number, since it uses as much as digits as its factorization.

82494157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 82494157 is about 9082.6294100332. The cubic root of 82494157 is about 435.3191070248.

The spelling of 82494157 in words is "eighty-two million, four hundred ninety-four thousand, one hundred fifty-seven".