16137887 has 8 divisors (see below), whose sum is σ = 17066112. Its totient is φ = 15235200.

The previous prime is 16137853. The next prime is 16137889. The reversal of 16137887 is 78873161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16137887 - 2¹⁰ = 16136863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16137889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5078 + ... + 7619.

It is an arithmetic number, because the mean of its divisors is an integer number (2133264).

Almost surely, 2^16137887 is an apocalyptic number.

16137887 is a deficient number, since it is larger than the sum of its proper divisors (928225).

16137887 is a wasteful number, since it uses less digits than its factorization.

16137887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12769.

The product of its digits is 56448, while the sum is 41.

The square root of 16137887 is about 4017.1988997310. The cubic root of 16137887 is about 252.7060018712.

The spelling of 16137887 in words is "sixteen million, one hundred thirty-seven thousand, eight hundred eighty-seven".