240001121 has 8 divisors (see below), whose sum is σ = 255976200. Its totient is φ = 224232448.

The previous prime is 240001117. The next prime is 240001127. The reversal of 240001121 is 121100042.

It can be written as a sum of positive squares in 4 ways, for example, as 48455521 + 191545600 = 6961^2 + 13840^2 .

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

It is not a de Polignac number, because 240001121 - 2² = 240001117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240001127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49196 + ... + 53853.

It is an arithmetic number, because the mean of its divisors is an integer number (31997025).

Almost surely, 2^240001121 is an apocalyptic number.

It is an amenable number.

240001121 is a deficient number, since it is larger than the sum of its proper divisors (15975079).

240001121 is a wasteful number, since it uses less digits than its factorization.

240001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103203.

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

The square root of 240001121 is about 15491.9695649068. The cubic root of 240001121 is about 621.4474687469.

Adding to 240001121 its reverse (121100042), we get a palindrome (361101163).

The spelling of 240001121 in words is "two hundred forty million, one thousand, one hundred twenty-one".