245452045 has 4 divisors (see below), whose sum is σ = 294542460. Its totient is φ = 196361632.

The previous prime is 245452037. The next prime is 245452087. The reversal of 245452045 is 540254542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540254542 = 2 ⋅270127271.

It can be written as a sum of positive squares in 2 ways, for example, as 190053796 + 55398249 = 13786^2 + 7443^2 .

It is a cyclic number.

It is not a de Polignac number, because 245452045 - 2³ = 245452037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245451998 and 245452016.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24545200 + ... + 24545209.

It is an arithmetic number, because the mean of its divisors is an integer number (73635615).

Almost surely, 2^245452045 is an apocalyptic number.

It is an amenable number.

245452045 is a deficient number, since it is larger than the sum of its proper divisors (49090415).

245452045 is an equidigital number, since it uses as much as digits as its factorization.

245452045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49090414.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 245452045 is about 15666.9092357108. The cubic root of 245452045 is about 626.1170806199.

The spelling of 245452045 in words is "two hundred forty-five million, four hundred fifty-two thousand, forty-five".