16354861 has 2 divisors, whose sum is σ = 16354862. Its totient is φ = 16354860.

The previous prime is 16354841. The next prime is 16354873. The reversal of 16354861 is 16845361.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16152361 + 202500 = 4019^2 + 450^2 .

It is a cyclic number.

It is not a de Polignac number, because 16354861 - 2²³ = 7966253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16354831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8177430 + 8177431.

It is an arithmetic number, because the mean of its divisors is an integer number (8177431).

Almost surely, 2^16354861 is an apocalyptic number.

It is an amenable number.

16354861 is a deficient number, since it is larger than the sum of its proper divisors (1).

16354861 is an equidigital number, since it uses as much as digits as its factorization.

16354861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 16354861 is about 4044.1143653463. The cubic root of 16354861 is about 253.8335083927.

The spelling of 16354861 in words is "sixteen million, three hundred fifty-four thousand, eight hundred sixty-one".