234133621 has 4 divisors (see below), whose sum is σ = 236954592. Its totient is φ = 231312652.

The previous prime is 234133619. The next prime is 234133651. The reversal of 234133621 is 126331432.

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 234133621 - 2¹ = 234133619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234133651) 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, 1410361 + ... + 1410526.

It is an arithmetic number, because the mean of its divisors is an integer number (59238648).

Almost surely, 2^234133621 is an apocalyptic number.

It is an amenable number.

234133621 is a deficient number, since it is larger than the sum of its proper divisors (2820971).

234133621 is an equidigital number, since it uses as much as digits as its factorization.

234133621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820970.

The product of its digits is 2592, while the sum is 25.

The square root of 234133621 is about 15301.4254564730. The cubic root of 234133621 is about 616.3412865713.

The spelling of 234133621 in words is "two hundred thirty-four million, one hundred thirty-three thousand, six hundred twenty-one".