197082539 has 2 divisors, whose sum is σ = 197082540. Its totient is φ = 197082538.

The previous prime is 197082503. The next prime is 197082541. The reversal of 197082539 is 935280791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197082539 - 2¹² = 197078443 is a prime.

Together with 197082541, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197082539.

It is not a weakly prime, because it can be changed into another prime (197082559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98541269 + 98541270.

It is an arithmetic number, because the mean of its divisors is an integer number (98541270).

Almost surely, 2^197082539 is an apocalyptic number.

197082539 is a deficient number, since it is larger than the sum of its proper divisors (1).

197082539 is an equidigital number, since it uses as much as digits as its factorization.

197082539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 197082539 is about 14038.6088698275. The cubic root of 197082539 is about 581.9460385802.

The spelling of 197082539 in words is "one hundred ninety-seven million, eighty-two thousand, five hundred thirty-nine".