245465461 has 4 divisors (see below), whose sum is σ = 245635852. Its totient is φ = 245295072.

The previous prime is 245465447. The next prime is 245465491. The reversal of 245465461 is 164564542.

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 243547236 + 1918225 = 15606^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 245465461 - 2⁹ = 245464949 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 245465461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245465411) by changing a digit.

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, 83016 + ... + 85921.

It is an arithmetic number, because the mean of its divisors is an integer number (61408963).

Almost surely, 2^245465461 is an apocalyptic number.

It is an amenable number.

245465461 is a deficient number, since it is larger than the sum of its proper divisors (170391).

245465461 is a wasteful number, since it uses less digits than its factorization.

245465461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170390.

The product of its digits is 115200, while the sum is 37.

The square root of 245465461 is about 15667.3373934437. The cubic root of 245465461 is about 626.1284879177.

The spelling of 245465461 in words is "two hundred forty-five million, four hundred sixty-five thousand, four hundred sixty-one".