16481939 has 2 divisors, whose sum is σ = 16481940. Its totient is φ = 16481938.

The previous prime is 16481903. The next prime is 16481951. The reversal of 16481939 is 93918461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16481939 - 2¹² = 16477843 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16481896 and 16481905.

It is not a weakly prime, because it can be changed into another prime (16481239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8240969 + 8240970.

It is an arithmetic number, because the mean of its divisors is an integer number (8240970).

Almost surely, 2^16481939 is an apocalyptic number.

16481939 is a deficient number, since it is larger than the sum of its proper divisors (1).

16481939 is an equidigital number, since it uses as much as digits as its factorization.

16481939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 16481939 is about 4059.7954381964. The cubic root of 16481939 is about 254.4892455085.

The spelling of 16481939 in words is "sixteen million, four hundred eighty-one thousand, nine hundred thirty-nine".