232661543 has 4 divisors (see below), whose sum is σ = 232706088. Its totient is φ = 232617000.

The previous prime is 232661501. The next prime is 232661599. The reversal of 232661543 is 345166232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232661543 is a prime.

It is a super-2 number, since 2×232661543² = 108262787182281698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232661243) 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, 13208 + ... + 25293.

It is an arithmetic number, because the mean of its divisors is an integer number (58176522).

Almost surely, 2^232661543 is an apocalyptic number.

232661543 is a deficient number, since it is larger than the sum of its proper divisors (44545).

232661543 is an equidigital number, since it uses as much as digits as its factorization.

232661543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44544.

The product of its digits is 25920, while the sum is 32.

The square root of 232661543 is about 15253.2469658103. The cubic root of 232661543 is about 615.0468539005.

The spelling of 232661543 in words is "two hundred thirty-two million, six hundred sixty-one thousand, five hundred forty-three".