82142651 has 2 divisors, whose sum is σ = 82142652. Its totient is φ = 82142650.

The previous prime is 82142629. The next prime is 82142663. The reversal of 82142651 is 15624128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82142651 - 2²⁶ = 15033787 is a prime.

It is a super-2 number, since 2×82142651² = 13494830226615602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82142251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41071325 + 41071326.

It is an arithmetic number, because the mean of its divisors is an integer number (41071326).

Almost surely, 2^82142651 is an apocalyptic number.

82142651 is a deficient number, since it is larger than the sum of its proper divisors (1).

82142651 is an equidigital number, since it uses as much as digits as its factorization.

82142651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 29.

The square root of 82142651 is about 9063.2582993094. The cubic root of 82142651 is about 434.6999313397.

Adding to 82142651 its reverse (15624128), we get a palindrome (97766779).

The spelling of 82142651 in words is "eighty-two million, one hundred forty-two thousand, six hundred fifty-one".