2145323018 has 8 divisors (see below), whose sum is σ = 3223086240. Its totient is φ = 1070960940.

The previous prime is 2145322981. The next prime is 2145323021. The reversal of 2145323018 is 8103235412.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848708 + ... + 851231.

It is an arithmetic number, because the mean of its divisors is an integer number (402885780).

Almost surely, 2^2145323018 is an apocalyptic number.

2145323018 is a deficient number, since it is larger than the sum of its proper divisors (1077763222).

2145323018 is a wasteful number, since it uses less digits than its factorization.

2145323018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700572.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2145323018 is about 46317.6318263359. The cubic root of 2145323018 is about 1289.7263241719.

The spelling of 2145323018 in words is "two billion, one hundred forty-five million, three hundred twenty-three thousand, eighteen".