16287461 has 2 divisors, whose sum is σ = 16287462. Its totient is φ = 16287460.

The previous prime is 16287451. The next prime is 16287527. The reversal of 16287461 is 16478261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10764961 + 5522500 = 3281^2 + 2350^2 .

It is a cyclic number.

It is not a de Polignac number, because 16287461 - 2¹⁰ = 16286437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16287421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8143730 + 8143731.

It is an arithmetic number, because the mean of its divisors is an integer number (8143731).

Almost surely, 2^16287461 is an apocalyptic number.

It is an amenable number.

16287461 is a deficient number, since it is larger than the sum of its proper divisors (1).

16287461 is an equidigital number, since it uses as much as digits as its factorization.

16287461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 16287461 is about 4035.7726645588. The cubic root of 16287461 is about 253.4843372972.

The spelling of 16287461 in words is "sixteen million, two hundred eighty-seven thousand, four hundred sixty-one".