245111887 has 2 divisors, whose sum is σ = 245111888. Its totient is φ = 245111886.

The previous prime is 245111879. The next prime is 245111903. The reversal of 245111887 is 788111542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245111887 - 2³ = 245111879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245111387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122555943 + 122555944.

It is an arithmetic number, because the mean of its divisors is an integer number (122555944).

Almost surely, 2^245111887 is an apocalyptic number.

245111887 is a deficient number, since it is larger than the sum of its proper divisors (1).

245111887 is an equidigital number, since it uses as much as digits as its factorization.

245111887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 37.

The square root of 245111887 is about 15656.0495336467. The cubic root of 245111887 is about 625.8277135805.

The spelling of 245111887 in words is "two hundred forty-five million, one hundred eleven thousand, eight hundred eighty-seven".