16454869 has 2 divisors, whose sum is σ = 16454870. Its totient is φ = 16454868.

The previous prime is 16454863. The next prime is 16454881. The reversal of 16454869 is 96845461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9891025 + 6563844 = 3145^2 + 2562^2 .

It is an emirp because it is prime and its reverse (96845461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16454869 is a prime.

It is a super-2 number, since 2×16454869² = 541525427614322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16454863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8227434 + 8227435.

It is an arithmetic number, because the mean of its divisors is an integer number (8227435).

Almost surely, 2^16454869 is an apocalyptic number.

It is an amenable number.

16454869 is a deficient number, since it is larger than the sum of its proper divisors (1).

16454869 is an equidigital number, since it uses as much as digits as its factorization.

16454869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The square root of 16454869 is about 4056.4601563432. The cubic root of 16454869 is about 254.3498444579.

The spelling of 16454869 in words is "sixteen million, four hundred fifty-four thousand, eight hundred sixty-nine".