245196839 has 2 divisors, whose sum is σ = 245196840. Its totient is φ = 245196838.

The previous prime is 245196829. The next prime is 245196841. The reversal of 245196839 is 938691542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245196839 - 2²⁴ = 228419623 is a prime.

Together with 245196841, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 245196793 and 245196802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245196829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122598419 + 122598420.

It is an arithmetic number, because the mean of its divisors is an integer number (122598420).

Almost surely, 2^245196839 is an apocalyptic number.

245196839 is a deficient number, since it is larger than the sum of its proper divisors (1).

245196839 is an equidigital number, since it uses as much as digits as its factorization.

245196839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 47.

The square root of 245196839 is about 15658.7623712732. The cubic root of 245196839 is about 625.9000059740.

The spelling of 245196839 in words is "two hundred forty-five million, one hundred ninety-six thousand, eight hundred thirty-nine".