245451265 has 4 divisors (see below), whose sum is σ = 294541524. Its totient is φ = 196361008.

The previous prime is 245451263. The next prime is 245451299. The reversal of 245451265 is 562154542.

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

It can be written as a sum of positive squares in 2 ways, for example, as 100080016 + 145371249 = 10004^2 + 12057^2 .

It is a cyclic number.

It is not a de Polignac number, because 245451265 - 2¹ = 245451263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245451265.

It is not an unprimeable number, because it can be changed into a prime (245451263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24545122 + ... + 24545131.

It is an arithmetic number, because the mean of its divisors is an integer number (73635381).

Almost surely, 2^245451265 is an apocalyptic number.

It is an amenable number.

245451265 is a deficient number, since it is larger than the sum of its proper divisors (49090259).

245451265 is an equidigital number, since it uses as much as digits as its factorization.

245451265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49090258.

The product of its digits is 48000, while the sum is 34.

The square root of 245451265 is about 15666.8843424594. The cubic root of 245451265 is about 626.1164173921.

The spelling of 245451265 in words is "two hundred forty-five million, four hundred fifty-one thousand, two hundred sixty-five".