245109611 has 2 divisors, whose sum is σ = 245109612. Its totient is φ = 245109610.

The previous prime is 245109583. The next prime is 245109617. The reversal of 245109611 is 116901542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245109611 - 2¹⁸ = 244847467 is a prime.

It is not a weakly prime, because it can be changed into another prime (245109617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122554805 + 122554806.

It is an arithmetic number, because the mean of its divisors is an integer number (122554806).

Almost surely, 2^245109611 is an apocalyptic number.

245109611 is a deficient number, since it is larger than the sum of its proper divisors (1).

245109611 is an equidigital number, since it uses as much as digits as its factorization.

245109611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 245109611 is about 15655.9768459205. The cubic root of 245109611 is about 625.8257765218.

The spelling of 245109611 in words is "two hundred forty-five million, one hundred nine thousand, six hundred eleven".