245198887 has 2 divisors, whose sum is σ = 245198888. Its totient is φ = 245198886.

The previous prime is 245198851. The next prime is 245198893. The reversal of 245198887 is 788891542.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245198887 - 2¹¹ = 245196839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245190887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122599443 + 122599444.

It is an arithmetic number, because the mean of its divisors is an integer number (122599444).

Almost surely, 2^245198887 is an apocalyptic number.

245198887 is a deficient number, since it is larger than the sum of its proper divisors (1).

245198887 is an equidigital number, since it uses as much as digits as its factorization.

245198887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 52.

The square root of 245198887 is about 15658.8277658323. The cubic root of 245198887 is about 625.9017485735.

The spelling of 245198887 in words is "two hundred forty-five million, one hundred ninety-eight thousand, eight hundred eighty-seven".