16011287 has 4 divisors (see below), whose sum is σ = 16020576. Its totient is φ = 16002000.

The previous prime is 16011257. The next prime is 16011293. The reversal of 16011287 is 78211061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 78211061 = 131 ⋅597031.

It is a cyclic number.

It is not a de Polignac number, because 16011287 - 2⁶ = 16011223 is a prime.

It is a super-2 number, since 2×16011287² = 512722622792738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16011257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214 + ... + 5787.

It is an arithmetic number, because the mean of its divisors is an integer number (4005144).

Almost surely, 2^16011287 is an apocalyptic number.

16011287 is a deficient number, since it is larger than the sum of its proper divisors (9289).

16011287 is an equidigital number, since it uses as much as digits as its factorization.

16011287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9288.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 16011287 is about 4001.4106262667. The cubic root of 16011287 is about 252.0434490884.

The spelling of 16011287 in words is "sixteen million, eleven thousand, two hundred eighty-seven".