245513289 has 32 divisors (see below), whose sum is σ = 391458816. Its totient is φ = 133937280.

The previous prime is 245513251. The next prime is 245513291. The reversal of 245513289 is 982315542.

It is not a de Polignac number, because 245513289 - 2⁸ = 245513033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245513299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37434 + ... + 43500.

It is an arithmetic number, because the mean of its divisors is an integer number (12233088).

Almost surely, 2^245513289 is an apocalyptic number.

It is an amenable number.

245513289 is a deficient number, since it is larger than the sum of its proper divisors (145945527).

245513289 is a wasteful number, since it uses less digits than its factorization.

245513289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6165.

The product of its digits is 86400, while the sum is 39.

The square root of 245513289 is about 15668.8636792845. The cubic root of 245513289 is about 626.1691515185.

The spelling of 245513289 in words is "two hundred forty-five million, five hundred thirteen thousand, two hundred eighty-nine".