16146861 has 4 divisors (see below), whose sum is σ = 21529152. Its totient is φ = 10764572.

The previous prime is 16146857. The next prime is 16146863. The reversal of 16146861 is 16864161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16146861 - 2² = 16146857 is a prime.

It is a super-2 number, since 2×16146861² = 521442240306642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16146863) 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, 2691141 + ... + 2691146.

It is an arithmetic number, because the mean of its divisors is an integer number (5382288).

Almost surely, 2^16146861 is an apocalyptic number.

It is an amenable number.

16146861 is a deficient number, since it is larger than the sum of its proper divisors (5382291).

16146861 is an equidigital number, since it uses as much as digits as its factorization.

16146861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382290.

The product of its digits is 6912, while the sum is 33.

The square root of 16146861 is about 4018.3156919286. The cubic root of 16146861 is about 252.7528350044.

The spelling of 16146861 in words is "sixteen million, one hundred forty-six thousand, eight hundred sixty-one".