16342481 has 2 divisors, whose sum is σ = 16342482. Its totient is φ = 16342480.

The previous prime is 16342471. The next prime is 16342483. The reversal of 16342481 is 18424361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16072081 + 270400 = 4009^2 + 520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16342481 is a prime.

It is a super-2 number, since 2×16342481² = 534153370470722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 16342483, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16342483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8171240 + 8171241.

It is an arithmetic number, because the mean of its divisors is an integer number (8171241).

Almost surely, 2^16342481 is an apocalyptic number.

It is an amenable number.

16342481 is a deficient number, since it is larger than the sum of its proper divisors (1).

16342481 is an equidigital number, since it uses as much as digits as its factorization.

16342481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 29.

The square root of 16342481 is about 4042.5834561577. The cubic root of 16342481 is about 253.7694448283.

The spelling of 16342481 in words is "sixteen million, three hundred forty-two thousand, four hundred eighty-one".