245218899 has 16 divisors (see below), whose sum is σ = 332467200. Its totient is φ = 160739136.

The previous prime is 245218891. The next prime is 245218907. The reversal of 245218899 is 998812542.

It is an interprime number because it is at equal distance from previous prime (245218891) and next prime (245218907).

It is not a de Polignac number, because 245218899 - 2³ = 245218891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245218891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77062 + ... + 80180.

It is an arithmetic number, because the mean of its divisors is an integer number (20779200).

Almost surely, 2^245218899 is an apocalyptic number.

245218899 is a deficient number, since it is larger than the sum of its proper divisors (87248301).

245218899 is a wasteful number, since it uses less digits than its factorization.

245218899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554.

The product of its digits is 414720, while the sum is 48.

The square root of 245218899 is about 15659.4667533732. The cubic root of 245218899 is about 625.9187758463.

The spelling of 245218899 in words is "two hundred forty-five million, two hundred eighteen thousand, eight hundred ninety-nine".