2401121 has 4 divisors (see below), whose sum is σ = 2405652. Its totient is φ = 2396592.

The previous prime is 2401117. The next prime is 2401127. The reversal of 2401121 is 1211042.

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 739600 + 1661521 = 860^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 2401121 - 2² = 2401117 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2401127) 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, 1346 + ... + 2571.

It is an arithmetic number, because the mean of its divisors is an integer number (601413).

2^2401121 is an apocalyptic number.

It is an amenable number.

2401121 is a deficient number, since it is larger than the sum of its proper divisors (4531).

2401121 is an equidigital number, since it uses as much as digits as its factorization.

2401121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2401121 is about 1549.5550974393. Note that the first 3 decimals coincide. The cubic root of 2401121 is about 133.9074321700.

Adding to 2401121 its reverse (1211042), we get a palindrome (3612163).

It can be divided in two parts, 2401 and 121, that multiplied together give a square (290521 = 539²).

The spelling of 2401121 in words is "two million, four hundred one thousand, one hundred twenty-one".