245240013 has 16 divisors (see below), whose sum is σ = 331735040. Its totient is φ = 161134704.

The previous prime is 245240003. The next prime is 245240057. The reversal of 245240013 is 310042542.

245240013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245240013 - 2⁶ = 245239949 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 (245240003) 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, 67128 + ... + 70686.

It is an arithmetic number, because the mean of its divisors is an integer number (20733440).

Almost surely, 2^245240013 is an apocalyptic number.

It is an amenable number.

245240013 is a deficient number, since it is larger than the sum of its proper divisors (86495027).

245240013 is a wasteful number, since it uses less digits than its factorization.

245240013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 245240013 is about 15660.1408997493. The cubic root of 245240013 is about 625.9367397551.

Adding to 245240013 its reverse (310042542), we get a palindrome (555282555).

The spelling of 245240013 in words is "two hundred forty-five million, two hundred forty thousand, thirteen".