164069369 has 4 divisors (see below), whose sum is σ = 164096244. Its totient is φ = 164042496.

The previous prime is 164069341. The next prime is 164069371. The reversal of 164069369 is 963960461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 963960461 = 9041 ⋅106621.

It can be written as a sum of positive squares in 2 ways, for example, as 6190144 + 157879225 = 2488^2 + 12565^2 .

It is a cyclic number.

It is not a de Polignac number, because 164069369 - 2¹² = 164065273 is a prime.

It is a super-2 number, since 2×164069369² = 53837515688116322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164069869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629 + ... + 18125.

It is an arithmetic number, because the mean of its divisors is an integer number (41024061).

Almost surely, 2^164069369 is an apocalyptic number.

It is an amenable number.

164069369 is a deficient number, since it is larger than the sum of its proper divisors (26875).

164069369 is an equidigital number, since it uses as much as digits as its factorization.

164069369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26874.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 164069369 is about 12808.9565929470. The cubic root of 164069369 is about 547.4475324853.

The spelling of 164069369 in words is "one hundred sixty-four million, sixty-nine thousand, three hundred sixty-nine".