245329481 has 2 divisors, whose sum is σ = 245329482. Its totient is φ = 245329480.

The previous prime is 245329459. The next prime is 245329537. The reversal of 245329481 is 184923542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182682256 + 62647225 = 13516^2 + 7915^2 .

It is a cyclic number.

It is not a de Polignac number, because 245329481 - 2²⁶ = 178220617 is a prime.

It is a super-2 number, since 2×245329481² = 120373108495458722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245329451) 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 as a sum of consecutive naturals, namely, 122664740 + 122664741.

It is an arithmetic number, because the mean of its divisors is an integer number (122664741).

Almost surely, 2^245329481 is an apocalyptic number.

It is an amenable number.

245329481 is a deficient number, since it is larger than the sum of its proper divisors (1).

245329481 is an equidigital number, since it uses as much as digits as its factorization.

245329481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

The square root of 245329481 is about 15662.9971908316. The cubic root of 245329481 is about 626.0128481884.

The spelling of 245329481 in words is "two hundred forty-five million, three hundred twenty-nine thousand, four hundred eighty-one".