16164749 has 2 divisors, whose sum is σ = 16164750. Its totient is φ = 16164748.

The previous prime is 16164713. The next prime is 16164751. The reversal of 16164749 is 94746161.

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., 13213225 + 2951524 = 3635^2 + 1718^2 .

It is a cyclic number.

It is not a de Polignac number, because 16164749 - 2¹² = 16160653 is a prime.

It is a super-2 number, since 2×16164749² = 522598220466002, which contains 22 as substring.

Together with 16164751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16164779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8082374 + 8082375.

It is an arithmetic number, because the mean of its divisors is an integer number (8082375).

Almost surely, 2^16164749 is an apocalyptic number.

It is an amenable number.

16164749 is a deficient number, since it is larger than the sum of its proper divisors (1).

16164749 is an equidigital number, since it uses as much as digits as its factorization.

16164749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 16164749 is about 4020.5408840105. The cubic root of 16164749 is about 252.8461364031.

The spelling of 16164749 in words is "sixteen million, one hundred sixty-four thousand, seven hundred forty-nine".