361342081 has 3 divisors (see below), whose sum is σ = 361361091. Its totient is φ = 361323072.

The previous prime is 361342073. The next prime is 361342087. The reversal of 361342081 is 180243163.

The square root of 361342081 is 19009.

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.

It can be written as a sum of positive squares in only one way, i.e., 304188481 + 57153600 = 17441^2 + 7560^2 .

It is not a de Polignac number, because 361342081 - 2³ = 361342073 is a prime.

It is a super-2 number, since 2×361342081² = 261136199002821122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361342087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9505 + ... + 28513.

It is an arithmetic number, because the mean of its divisors is an integer number (120453697).

Almost surely, 2^361342081 is an apocalyptic number.

361342081 is the 19009-th square number.

361342081 is the 9505-th centered octagonal number.

It is an amenable number.

361342081 is a deficient number, since it is larger than the sum of its proper divisors (19010).

361342081 is an frugal number, since it uses more digits than its factorization.

361342081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38018 (or 19009 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The cubic root of 361342081 is about 712.2615718484.

The spelling of 361342081 in words is "three hundred sixty-one million, three hundred forty-two thousand, eighty-one".