645146202 has 16 divisors (see below), whose sum is σ = 1291174560. Its totient is φ = 214901712.

The previous prime is 645146189. The next prime is 645146207. The reversal of 645146202 is 202641546.

It is a self number, because there is not a number n which added to its sum of digits gives 645146202.

It is not an unprimeable number, because it can be changed into a prime (645146207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27052 + ... + 44967.

It is an arithmetic number, because the mean of its divisors is an integer number (80698410).

Almost surely, 2^645146202 is an apocalyptic number.

645146202 is an abundant number, since it is smaller than the sum of its proper divisors (646028358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

645146202 is a wasteful number, since it uses less digits than its factorization.

645146202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73517.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 645146202 is about 25399.7283843745. The cubic root of 645146202 is about 864.0775366586.

Adding to 645146202 its reverse (202641546), we get a palindrome (847787748).

The spelling of 645146202 in words is "six hundred forty-five million, one hundred forty-six thousand, two hundred two".