16120100 has 18 divisors (see below), whose sum is σ = 34980834. Its totient is φ = 6448000.

The previous prime is 16120073. The next prime is 16120129. The reversal of 16120100 is 102161.

It can be written as a sum of positive squares in 3 ways, for example, as 5044516 + 11075584 = 2246^2 + 3328^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80501 + ... + 80700.

Almost surely, 2^16120100 is an apocalyptic number.

16120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16120100 is an abundant number, since it is smaller than the sum of its proper divisors (18860734).

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

16120100 is a wasteful number, since it uses less digits than its factorization.

16120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161215 (or 161208 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 16120100 is about 4014.9844333447. The cubic root of 16120100 is about 252.6131244896.

Adding to 16120100 its reverse (102161), we get a palindrome (16222261).

The spelling of 16120100 in words is "sixteen million, one hundred twenty thousand, one hundred".