100120564 has 12 divisors (see below), whose sum is σ = 182829024. Its totient is φ = 47883704.

The previous prime is 100120561. The next prime is 100120583. The reversal of 100120564 is 465021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544042 + ... + 544225.

It is an arithmetic number, because the mean of its divisors is an integer number (15235752).

Almost surely, 2^100120564 is an apocalyptic number.

It is an amenable number.

100120564 is a deficient number, since it is larger than the sum of its proper divisors (82708460).

100120564 is a wasteful number, since it uses less digits than its factorization.

100120564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088294 (or 1088292 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 100120564 is about 10006.0263841347. The cubic root of 100120564 is about 464.3453446183.

Adding to 100120564 its reverse (465021001), we get a palindrome (565141565).

The spelling of 100120564 in words is "one hundred million, one hundred twenty thousand, five hundred sixty-four".