16133749 has 2 divisors, whose sum is σ = 16133750. Its totient is φ = 16133748.

The previous prime is 16133743. The next prime is 16133759. The reversal of 16133749 is 94733161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11902500 + 4231249 = 3450^2 + 2057^2 .

It is a cyclic number.

It is not a de Polignac number, because 16133749 - 2¹⁷ = 16002677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16133743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8066874 + 8066875.

It is an arithmetic number, because the mean of its divisors is an integer number (8066875).

Almost surely, 2^16133749 is an apocalyptic number.

It is an amenable number.

16133749 is a deficient number, since it is larger than the sum of its proper divisors (1).

16133749 is an equidigital number, since it uses as much as digits as its factorization.

16133749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 16133749 is about 4016.6838312220. The cubic root of 16133749 is about 252.6844008023.

The spelling of 16133749 in words is "sixteen million, one hundred thirty-three thousand, seven hundred forty-nine".