245679911 has 2 divisors, whose sum is σ = 245679912. Its totient is φ = 245679910.

The previous prime is 245679901. The next prime is 245679919. The reversal of 245679911 is 119976542.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245679911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245679919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122839955 + 122839956.

It is an arithmetic number, because the mean of its divisors is an integer number (122839956).

Almost surely, 2^245679911 is an apocalyptic number.

245679911 is a deficient number, since it is larger than the sum of its proper divisors (1).

245679911 is an equidigital number, since it uses as much as digits as its factorization.

245679911 is an odious number, because the sum of its binary digits is odd.

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

The square root of 245679911 is about 15674.1797552535. The cubic root of 245679911 is about 626.3107731296.

The spelling of 245679911 in words is "two hundred forty-five million, six hundred seventy-nine thousand, nine hundred eleven".