1693225165 has 4 divisors (see below), whose sum is σ = 2031870204. Its totient is φ = 1354580128.

The previous prime is 1693225153. The next prime is 1693225181. The reversal of 1693225165 is 5615223961.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 580135396 + 1113089769 = 24086^2 + 33363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1693225165 - 2⁵ = 1693225133 is a prime.

It is a super-2 number, since 2×1693225165² = 5734022918778554450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169322512 + ... + 169322521.

It is an arithmetic number, because the mean of its divisors is an integer number (507967551).

Almost surely, 2^1693225165 is an apocalyptic number.

It is an amenable number.

1693225165 is a deficient number, since it is larger than the sum of its proper divisors (338645039).

1693225165 is an equidigital number, since it uses as much as digits as its factorization.

1693225165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338645038.

The product of its digits is 97200, while the sum is 40.

The square root of 1693225165 is about 41148.8172977061. The cubic root of 1693225165 is about 1191.8956592771.

The spelling of 1693225165 in words is "one billion, six hundred ninety-three million, two hundred twenty-five thousand, one hundred sixty-five".