64102120 has 16 divisors (see below), whose sum is σ = 144229860. Its totient is φ = 25640832.

The previous prime is 64102111. The next prime is 64102139. The reversal of 64102120 is 2120146.

It can be written as a sum of positive squares in 2 ways, for example, as 64096036 + 6084 = 8006^2 + 78^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64102094 and 64102103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801237 + ... + 801316.

Almost surely, 2^64102120 is an apocalyptic number.

It is an amenable number.

64102120 is an abundant number, since it is smaller than the sum of its proper divisors (80127740).

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

64102120 is a wasteful number, since it uses less digits than its factorization.

64102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602564 (or 1602560 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 64102120 is about 8006.3799560101. The cubic root of 64102120 is about 400.2126369438.

Adding to 64102120 its reverse (2120146), we get a palindrome (66222266).

The spelling of 64102120 in words is "sixty-four million, one hundred two thousand, one hundred twenty".