646130102 has 16 divisors (see below), whose sum is σ = 994608720. Its totient is φ = 314681952.

The previous prime is 646130077. The next prime is 646130113. The reversal of 646130102 is 201031646.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7193 + ... + 36660.

It is an arithmetic number, because the mean of its divisors is an integer number (62163045).

Almost surely, 2^646130102 is an apocalyptic number.

646130102 is a deficient number, since it is larger than the sum of its proper divisors (348478618).

646130102 is a wasteful number, since it uses less digits than its factorization.

646130102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44047.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 646130102 is about 25419.0893227905. The cubic root of 646130102 is about 864.5165761926.

Adding to 646130102 its reverse (201031646), we get a palindrome (847161748).

It can be divided in two parts, 6461 and 30102, that added together give a palindrome (36563).

The spelling of 646130102 in words is "six hundred forty-six million, one hundred thirty thousand, one hundred two".