232001281 has 4 divisors (see below), whose sum is σ = 232038612. Its totient is φ = 231963952.

The previous prime is 232001279. The next prime is 232001291. The reversal of 232001281 is 182100232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70711281 + 161290000 = 8409^2 + 12700^2 .

It is a cyclic number.

It is not a de Polignac number, because 232001281 - 2¹ = 232001279 is a prime.

It is a super-2 number, since 2×232001281² = 107649188771281922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232001201) 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, 6850 + ... + 22603.

It is an arithmetic number, because the mean of its divisors is an integer number (58009653).

Almost surely, 2^232001281 is an apocalyptic number.

It is an amenable number.

232001281 is a deficient number, since it is larger than the sum of its proper divisors (37331).

232001281 is an equidigital number, since it uses as much as digits as its factorization.

232001281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37330.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 232001281 is about 15231.5882625549. The cubic root of 232001281 is about 614.4644960655.

The spelling of 232001281 in words is "two hundred thirty-two million, one thousand, two hundred eighty-one".