245226865 has 8 divisors (see below), whose sum is σ = 316908648. Its totient is φ = 181090560.

The previous prime is 245226827. The next prime is 245226931. The reversal of 245226865 is 568622542.

It can be written as a sum of positive squares in 4 ways, for example, as 898704 + 244328161 = 948^2 + 15631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245226865 - 2⁹ = 245226353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886296 + ... + 1886425.

It is an arithmetic number, because the mean of its divisors is an integer number (39613581).

Almost surely, 2^245226865 is an apocalyptic number.

It is an amenable number.

245226865 is a deficient number, since it is larger than the sum of its proper divisors (71681783).

245226865 is a wasteful number, since it uses less digits than its factorization.

245226865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772739.

The product of its digits is 230400, while the sum is 40.

The square root of 245226865 is about 15659.7211022419. The cubic root of 245226865 is about 625.9255534846.

The spelling of 245226865 in words is "two hundred forty-five million, two hundred twenty-six thousand, eight hundred sixty-five".