245257465 has 4 divisors (see below), whose sum is σ = 294308964. Its totient is φ = 196205968.

The previous prime is 245257459. The next prime is 245257471. The reversal of 245257465 is 564752542.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (245257459) and next prime (245257471).

It can be written as a sum of positive squares in 2 ways, for example, as 77580864 + 167676601 = 8808^2 + 12949^2 .

It is a cyclic number.

It is not a de Polignac number, because 245257465 - 2³ = 245257457 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24525742 + ... + 24525751.

It is an arithmetic number, because the mean of its divisors is an integer number (73577241).

Almost surely, 2^245257465 is an apocalyptic number.

It is an amenable number.

245257465 is a deficient number, since it is larger than the sum of its proper divisors (49051499).

245257465 is an equidigital number, since it uses as much as digits as its factorization.

245257465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49051498.

The product of its digits is 336000, while the sum is 40.

The square root of 245257465 is about 15660.6981006595. The cubic root of 245257465 is about 625.9515872355.

The spelling of 245257465 in words is "two hundred forty-five million, two hundred fifty-seven thousand, four hundred sixty-five".