82119251 has 2 divisors, whose sum is σ = 82119252. Its totient is φ = 82119250.

The previous prime is 82119229. The next prime is 82119409. The reversal of 82119251 is 15291128.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82119251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82119221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41059625 + 41059626.

It is an arithmetic number, because the mean of its divisors is an integer number (41059626).

Almost surely, 2^82119251 is an apocalyptic number.

82119251 is a deficient number, since it is larger than the sum of its proper divisors (1).

82119251 is an equidigital number, since it uses as much as digits as its factorization.

82119251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 29.

The square root of 82119251 is about 9061.9672808944. The cubic root of 82119251 is about 434.6586497224.

The spelling of 82119251 in words is "eighty-two million, one hundred nineteen thousand, two hundred fifty-one".