645113110 has 32 divisors (see below), whose sum is σ = 1234167840. Its totient is φ = 241946112.

The previous prime is 645113107. The next prime is 645113113. The reversal of 645113110 is 11311546.

645113110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (645113107) and next prime (645113113).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645113113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38677 + ... + 52783.

It is an arithmetic number, because the mean of its divisors is an integer number (38567745).

Almost surely, 2^645113110 is an apocalyptic number.

645113110 is a deficient number, since it is larger than the sum of its proper divisors (589054730).

645113110 is a wasteful number, since it uses less digits than its factorization.

645113110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14400.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 645113110 is about 25399.0769517319. The cubic root of 645113110 is about 864.0627624660.

Adding to 645113110 its reverse (11311546), we get a palindrome (656424656).

The spelling of 645113110 in words is "six hundred forty-five million, one hundred thirteen thousand, one hundred ten".