232181151 has 4 divisors (see below), whose sum is σ = 309574872. Its totient is φ = 154787432.

The previous prime is 232181141. The next prime is 232181171. The reversal of 232181151 is 151181232.

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

It is a cyclic number.

It is not a de Polignac number, because 232181151 - 2⁷ = 232181023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232181141) 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 3 ways as a sum of consecutive naturals, for example, 38696856 + ... + 38696861.

It is an arithmetic number, because the mean of its divisors is an integer number (77393718).

Almost surely, 2^232181151 is an apocalyptic number.

232181151 is a deficient number, since it is larger than the sum of its proper divisors (77393721).

232181151 is an equidigital number, since it uses as much as digits as its factorization.

232181151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77393720.

The product of its digits is 480, while the sum is 24.

The square root of 232181151 is about 15237.4916242799. The cubic root of 232181151 is about 614.6232526290.

The spelling of 232181151 in words is "two hundred thirty-two million, one hundred eighty-one thousand, one hundred fifty-one".