4261121 has 4 divisors (see below), whose sum is σ = 4279044. Its totient is φ = 4243200.

The previous prime is 4261109. The next prime is 4261129. The reversal of 4261121 is 1211624.

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 2190400 + 2070721 = 1480^2 + 1439^2 .

It is a cyclic number.

It is not a de Polignac number, because 4261121 - 2¹⁰ = 4260097 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 4261121.

It is not an unprimeable number, because it can be changed into a prime (4261129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8600 + ... + 9081.

It is an arithmetic number, because the mean of its divisors is an integer number (1069761).

Almost surely, 2^4261121 is an apocalyptic number.

It is an amenable number.

4261121 is a deficient number, since it is larger than the sum of its proper divisors (17923).

4261121 is a wasteful number, since it uses less digits than its factorization.

4261121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17922.

The product of its digits is 96, while the sum is 17.

The square root of 4261121 is about 2064.2482893296. The cubic root of 4261121 is about 162.1217521964.

Adding to 4261121 its reverse (1211624), we get a palindrome (5472745).

It can be divided in two parts, 4 and 261121, that multiplied together give a square (1044484 = 1022²).

The spelling of 4261121 in words is "four million, two hundred sixty-one thousand, one hundred twenty-one".