16101887 has 4 divisors (see below), whose sum is σ = 16258320. Its totient is φ = 15945456.

The previous prime is 16101881. The next prime is 16101913. The reversal of 16101887 is 78810161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78810161 = 109 ⋅723029.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16101887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16101881) 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, 78062 + ... + 78267.

It is an arithmetic number, because the mean of its divisors is an integer number (4064580).

Almost surely, 2^16101887 is an apocalyptic number.

16101887 is a deficient number, since it is larger than the sum of its proper divisors (156433).

16101887 is a wasteful number, since it uses less digits than its factorization.

16101887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156432.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 16101887 is about 4012.7156639862. The cubic root of 16101887 is about 252.5179518655.

The spelling of 16101887 in words is "sixteen million, one hundred one thousand, eight hundred eighty-seven".