2151232345 has 8 divisors (see below), whose sum is σ = 2717346240. Its totient is φ = 1630407600.

The previous prime is 2151232327. The next prime is 2151232357. The reversal of 2151232345 is 5432321512.

2151232345 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2151232345 - 2⁵ = 2151232313 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11322181 + ... + 11322370.

It is an arithmetic number, because the mean of its divisors is an integer number (339668280).

Almost surely, 2^2151232345 is an apocalyptic number.

It is an amenable number.

2151232345 is a deficient number, since it is larger than the sum of its proper divisors (566113895).

2151232345 is a wasteful number, since it uses less digits than its factorization.

2151232345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22644575.

The product of its digits is 7200, while the sum is 28.

The square root of 2151232345 is about 46381.3792916942. The cubic root of 2151232345 is about 1290.9094292250.

Adding to 2151232345 its reverse (5432321512), we get a palindrome (7583553857).

The spelling of 2151232345 in words is "two billion, one hundred fifty-one million, two hundred thirty-two thousand, three hundred forty-five".