16172069 has 2 divisors, whose sum is σ = 16172070. Its totient is φ = 16172068.

The previous prime is 16172047. The next prime is 16172119. The reversal of 16172069 is 96027161.

It is a happy number.

16172069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15507844 + 664225 = 3938^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 16172069 - 2¹⁶ = 16106533 is a prime.

It is a super-2 number, since 2×16172069² = 523071631481522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16172369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8086034 + 8086035.

It is an arithmetic number, because the mean of its divisors is an integer number (8086035).

Almost surely, 2^16172069 is an apocalyptic number.

It is an amenable number.

16172069 is a deficient number, since it is larger than the sum of its proper divisors (1).

16172069 is an equidigital number, since it uses as much as digits as its factorization.

16172069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 16172069 is about 4021.4511062551. The cubic root of 16172069 is about 252.8842966907.

The spelling of 16172069 in words is "sixteen million, one hundred seventy-two thousand, sixty-nine".