245118887 has 4 divisors (see below), whose sum is σ = 263974200. Its totient is φ = 226263576.

The previous prime is 245118859. The next prime is 245118899. The reversal of 245118887 is 788811542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245118887 - 2¹⁰ = 245117863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245111887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9427637 + ... + 9427662.

It is an arithmetic number, because the mean of its divisors is an integer number (65993550).

Almost surely, 2^245118887 is an apocalyptic number.

245118887 is a deficient number, since it is larger than the sum of its proper divisors (18855313).

245118887 is a wasteful number, since it uses less digits than its factorization.

245118887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18855312.

The product of its digits is 143360, while the sum is 44.

The square root of 245118887 is about 15656.2730878073. The cubic root of 245118887 is about 625.8336710670.

The spelling of 245118887 in words is "two hundred forty-five million, one hundred eighteen thousand, eight hundred eighty-seven".