16481851 has 2 divisors, whose sum is σ = 16481852. Its totient is φ = 16481850.

The previous prime is 16481809. The next prime is 16481897. The reversal of 16481851 is 15818461.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16481851 - 2⁷ = 16481723 is a prime.

It is not a weakly prime, because it can be changed into another prime (16481051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8240925 + 8240926.

It is an arithmetic number, because the mean of its divisors is an integer number (8240926).

Almost surely, 2^16481851 is an apocalyptic number.

16481851 is a deficient number, since it is larger than the sum of its proper divisors (1).

16481851 is an equidigital number, since it uses as much as digits as its factorization.

16481851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 34.

The square root of 16481851 is about 4059.7846001974. The cubic root of 16481851 is about 254.4887925866.

The spelling of 16481851 in words is "sixteen million, four hundred eighty-one thousand, eight hundred fifty-one".