361494169 has 3 divisors (see below), whose sum is σ = 361513183. Its totient is φ = 361475156.

The previous prime is 361494149. The next prime is 361494173. The reversal of 361494169 is 961494163.

The square root of 361494169 is 19013.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 961494163 = 7 ⋅137356309.

It can be written as a sum of positive squares in only one way, i.e., 38025 + 361456144 = 195^2 + 19012^2 .

It is not a de Polignac number, because 361494169 - 2⁷ = 361494041 is a prime.

It is a super-2 number, since 2×361494169² = 261356068442001122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361494139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9507 + ... + 28519.

Almost surely, 2^361494169 is an apocalyptic number.

361494169 is the 19013-rd square number.

361494169 is the 9507-th centered octagonal number.

It is an amenable number.

361494169 is a deficient number, since it is larger than the sum of its proper divisors (19014).

361494169 is an frugal number, since it uses more digits than its factorization.

361494169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38026 (or 19013 counting only the distinct ones).

The product of its digits is 139968, while the sum is 43.

The cubic root of 361494169 is about 712.3614875507.

The spelling of 361494169 in words is "three hundred sixty-one million, four hundred ninety-four thousand, one hundred sixty-nine".