16121852 has 6 divisors (see below), whose sum is σ = 28213248. Its totient is φ = 8060924.

The previous prime is 16121849. The next prime is 16121857. The reversal of 16121852 is 25812161.

It is a super-2 number, since 2×16121852² = 519828223819808, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16121857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2015228 + ... + 2015235.

It is an arithmetic number, because the mean of its divisors is an integer number (4702208).

Almost surely, 2^16121852 is an apocalyptic number.

It is an amenable number.

16121852 is a deficient number, since it is larger than the sum of its proper divisors (12091396).

16121852 is a wasteful number, since it uses less digits than its factorization.

16121852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030467 (or 4030465 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 16121852 is about 4015.2026100808. The cubic root of 16121852 is about 252.6222758422.

The spelling of 16121852 in words is "sixteen million, one hundred twenty-one thousand, eight hundred fifty-two".