245181313 has 12 divisors (see below), whose sum is σ = 271674480. Its totient is φ = 221051376.

The previous prime is 245181269. The next prime is 245181331. The reversal of 245181313 is 313181542.

It is a happy number.

245181313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-245181313 is a prime.

It is a super-2 number, since 2×245181313² = 120227752488807938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245181373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9603 + ... + 24136.

It is an arithmetic number, because the mean of its divisors is an integer number (22639540).

Almost surely, 2^245181313 is an apocalyptic number.

It is an amenable number.

245181313 is a deficient number, since it is larger than the sum of its proper divisors (26493167).

245181313 is a wasteful number, since it uses less digits than its factorization.

245181313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33808 (or 33795 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 245181313 is about 15658.2666026607. The cubic root of 245181313 is about 625.8867949165.

The spelling of 245181313 in words is "two hundred forty-five million, one hundred eighty-one thousand, three hundred thirteen".