4561261 has 4 divisors (see below), whose sum is σ = 4606524. Its totient is φ = 4516000.

The previous prime is 4561241. The next prime is 4561267. The reversal of 4561261 is 1621654.

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 3976036 + 585225 = 1994^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 4561261 - 2¹³ = 4553069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4561267) 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, 22480 + ... + 22681.

It is an arithmetic number, because the mean of its divisors is an integer number (1151631).

Almost surely, 2^4561261 is an apocalyptic number.

It is an amenable number.

4561261 is a deficient number, since it is larger than the sum of its proper divisors (45263).

4561261 is a wasteful number, since it uses less digits than its factorization.

4561261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45262.

The product of its digits is 1440, while the sum is 25.

The square root of 4561261 is about 2135.7108886738. The cubic root of 4561261 is about 165.8421710791.

The spelling of 4561261 in words is "four million, five hundred sixty-one thousand, two hundred sixty-one".