648405102 has 16 divisors (see below), whose sum is σ = 1297227600. Its totient is φ = 216065472.

The previous prime is 648405101. The next prime is 648405193. The reversal of 648405102 is 201504846.

648405102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 648405102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648405101) 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, 5028 + ... + 36360.

It is an arithmetic number, because the mean of its divisors is an integer number (81076725).

Almost surely, 2^648405102 is an apocalyptic number.

648405102 is an abundant number, since it is smaller than the sum of its proper divisors (648822498).

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

648405102 is a wasteful number, since it uses less digits than its factorization.

648405102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34787.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 648405102 is about 25463.7998342745. The cubic root of 648405102 is about 865.5300312204.

Adding to 648405102 its reverse (201504846), we get a palindrome (849909948).

The spelling of 648405102 in words is "six hundred forty-eight million, four hundred five thousand, one hundred two".