234015021 has 16 divisors (see below), whose sum is σ = 354067200. Its totient is φ = 152689824.

The previous prime is 234015011. The next prime is 234015031. The reversal of 234015021 is 120510432.

It is an interprime number because it is at equal distance from previous prime (234015011) and next prime (234015031).

It is not a de Polignac number, because 234015021 - 2¹⁵ = 233982253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 234014985 and 234015003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234015011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90936 + ... + 93473.

It is an arithmetic number, because the mean of its divisors is an integer number (22129200).

Almost surely, 2^234015021 is an apocalyptic number.

It is an amenable number.

234015021 is a deficient number, since it is larger than the sum of its proper divisors (120052179).

234015021 is a wasteful number, since it uses less digits than its factorization.

234015021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184465 (or 184459 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 234015021 is about 15297.5495096437. The cubic root of 234015021 is about 616.2372001066.

Adding to 234015021 its reverse (120510432), we get a palindrome (354525453).

The spelling of 234015021 in words is "two hundred thirty-four million, fifteen thousand, twenty-one".