234271981 has 8 divisors (see below), whose sum is σ = 235934720. Its totient is φ = 232615152.

The previous prime is 234271979. The next prime is 234271987. The reversal of 234271981 is 189172432.

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

It is a cyclic number.

It is not a de Polignac number, because 234271981 - 2¹ = 234271979 is a prime.

It is a super-2 number, since 2×234271981² = 109766722163328722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 234271981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234271987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102115 + ... + 104383.

It is an arithmetic number, because the mean of its divisors is an integer number (29491840).

Almost surely, 2^234271981 is an apocalyptic number.

It is an amenable number.

234271981 is a deficient number, since it is larger than the sum of its proper divisors (1662739).

234271981 is a wasteful number, since it uses less digits than its factorization.

234271981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955.

The product of its digits is 24192, while the sum is 37.

The square root of 234271981 is about 15305.9459361387. The cubic root of 234271981 is about 616.4626705166.

The spelling of 234271981 in words is "two hundred thirty-four million, two hundred seventy-one thousand, nine hundred eighty-one".