245315013 has 16 divisors (see below), whose sum is σ = 336025536. Its totient is φ = 159096960.

The previous prime is 245315009. The next prime is 245315029. The reversal of 245315013 is 310513542.

It is not a de Polignac number, because 245315013 - 2² = 245315009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245315003) 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, 43206 + ... + 48552.

It is an arithmetic number, because the mean of its divisors is an integer number (21001596).

Almost surely, 2^245315013 is an apocalyptic number.

It is an amenable number.

245315013 is a deficient number, since it is larger than the sum of its proper divisors (90710523).

245315013 is a wasteful number, since it uses less digits than its factorization.

245315013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5764.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 245315013 is about 15662.5353311653. The cubic root of 245315013 is about 626.0005418376. Note that the first 3 decimals are identical.

Adding to 245315013 its reverse (310513542), we get a palindrome (555828555).

The spelling of 245315013 in words is "two hundred forty-five million, three hundred fifteen thousand, thirteen".