245195005 has 24 divisors (see below), whose sum is σ = 330333696. Its totient is φ = 174509280.

The previous prime is 245195003. The next prime is 245195017. The reversal of 245195005 is 500591542.

It is not a de Polignac number, because 245195005 - 2¹ = 245195003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245195003) 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 23 ways as a sum of consecutive naturals, for example, 24124 + ... + 32746.

It is an arithmetic number, because the mean of its divisors is an integer number (13763904).

Almost surely, 2^245195005 is an apocalyptic number.

It is an amenable number.

245195005 is a deficient number, since it is larger than the sum of its proper divisors (85138691).

245195005 is a wasteful number, since it uses less digits than its factorization.

245195005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697 (or 8686 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 245195005 is about 15658.7038097028. The cubic root of 245195005 is about 625.8984454544.

The spelling of 245195005 in words is "two hundred forty-five million, one hundred ninety-five thousand, five".