245837613 has 16 divisors (see below), whose sum is σ = 377473536. Its totient is φ = 139404720.

The previous prime is 245837609. The next prime is 245837677. The reversal of 245837613 is 316738542.

It is not a de Polignac number, because 245837613 - 2² = 245837609 is a prime.

It is a super-2 number, since 2×245837613² = 120872263931075538, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245835613) 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 15 ways as a sum of consecutive naturals, for example, 41931 + ... + 47432.

It is an arithmetic number, because the mean of its divisors is an integer number (23592096).

Almost surely, 2^245837613 is an apocalyptic number.

It is an amenable number.

245837613 is a deficient number, since it is larger than the sum of its proper divisors (131635923).

245837613 is a wasteful number, since it uses less digits than its factorization.

245837613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89504.

The product of its digits is 120960, while the sum is 39.

The square root of 245837613 is about 15679.2095782919. The cubic root of 245837613 is about 626.4447541500. Note that the first 3 decimals are identical.

The spelling of 245837613 in words is "two hundred forty-five million, eight hundred thirty-seven thousand, six hundred thirteen".