361665373 has 4 divisors (see below), whose sum is σ = 365393980. Its totient is φ = 357936768.

The previous prime is 361665349. The next prime is 361665391. The reversal of 361665373 is 373566163.

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 117462244 + 244203129 = 10838^2 + 15627^2 .

It is a cyclic number.

It is not a de Polignac number, because 361665373 - 2¹⁷ = 361534301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361665173) 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, 1864158 + ... + 1864351.

It is an arithmetic number, because the mean of its divisors is an integer number (91348495).

Almost surely, 2^361665373 is an apocalyptic number.

It is an amenable number.

361665373 is a deficient number, since it is larger than the sum of its proper divisors (3728607).

361665373 is an equidigital number, since it uses as much as digits as its factorization.

361665373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728606.

The product of its digits is 204120, while the sum is 40.

The square root of 361665373 is about 19017.5017549625. The cubic root of 361665373 is about 712.4739281729.

The spelling of 361665373 in words is "three hundred sixty-one million, six hundred sixty-five thousand, three hundred seventy-three".