234540121 has 4 divisors (see below), whose sum is σ = 236227600. Its totient is φ = 232852644.

The previous prime is 234540107. The next prime is 234540149. The reversal of 234540121 is 121045432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 234540121 - 2¹⁵ = 234507353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234540092 and 234540101.

It is not an unprimeable number, because it can be changed into a prime (234540101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843531 + ... + 843808.

It is an arithmetic number, because the mean of its divisors is an integer number (59056900).

Almost surely, 2^234540121 is an apocalyptic number.

It is an amenable number.

234540121 is a deficient number, since it is larger than the sum of its proper divisors (1687479).

234540121 is a wasteful number, since it uses less digits than its factorization.

234540121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687478.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 234540121 is about 15314.7027721729. The cubic root of 234540121 is about 616.6977751371.

Adding to 234540121 its reverse (121045432), we get a palindrome (355585553).

The spelling of 234540121 in words is "two hundred thirty-four million, five hundred forty thousand, one hundred twenty-one".