16542373 has 2 divisors, whose sum is σ = 16542374. Its totient is φ = 16542372.

The previous prime is 16542371. The next prime is 16542389. The reversal of 16542373 is 37324561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10227204 + 6315169 = 3198^2 + 2513^2 .

It is a cyclic number.

It is not a de Polignac number, because 16542373 - 2¹ = 16542371 is a prime.

It is a super-2 number, since 2×16542373² = 547300208942258, which contains 22 as substring.

Together with 16542371, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16542371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8271186 + 8271187.

It is an arithmetic number, because the mean of its divisors is an integer number (8271187).

Almost surely, 2^16542373 is an apocalyptic number.

It is an amenable number.

16542373 is a deficient number, since it is larger than the sum of its proper divisors (1).

16542373 is an equidigital number, since it uses as much as digits as its factorization.

16542373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 16542373 is about 4067.2316137638. The cubic root of 16542373 is about 254.7999096776.

The spelling of 16542373 in words is "sixteen million, five hundred forty-two thousand, three hundred seventy-three".