230151291 has 4 divisors (see below), whose sum is σ = 306868392. Its totient is φ = 153434192.

The previous prime is 230151277. The next prime is 230151293. The reversal of 230151291 is 192151032.

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 230151291 - 2⁶ = 230151227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230151293) 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, 38358546 + ... + 38358551.

It is an arithmetic number, because the mean of its divisors is an integer number (76717098).

Almost surely, 2^230151291 is an apocalyptic number.

230151291 is a deficient number, since it is larger than the sum of its proper divisors (76717101).

230151291 is an equidigital number, since it uses as much as digits as its factorization.

230151291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76717100.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 230151291 is about 15170.7379846862. The cubic root of 230151291 is about 612.8268784709.

The spelling of 230151291 in words is "two hundred thirty million, one hundred fifty-one thousand, two hundred ninety-one".