196124639 has 2 divisors, whose sum is σ = 196124640. Its totient is φ = 196124638.

The previous prime is 196124609. The next prime is 196124653. The reversal of 196124639 is 936421691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196124639 - 2²⁴ = 179347423 is a prime.

It is a Chen prime.

It is equal to p_10876379 and since 196124639 and 10876379 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 196124596 and 196124605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196124609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98062319 + 98062320.

It is an arithmetic number, because the mean of its divisors is an integer number (98062320).

Almost surely, 2^196124639 is an apocalyptic number.

196124639 is a deficient number, since it is larger than the sum of its proper divisors (1).

196124639 is an equidigital number, since it uses as much as digits as its factorization.

196124639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The square root of 196124639 is about 14004.4506854071. The cubic root of 196124639 is about 581.0016767291.

The spelling of 196124639 in words is "one hundred ninety-six million, one hundred twenty-four thousand, six hundred thirty-nine".