375623161 has 3 divisors (see below), whose sum is σ = 375642543. Its totient is φ = 375603780.

The previous prime is 375623159. The next prime is 375623173. The reversal of 375623161 is 161326573.

The square root of 375623161 is 19381.

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: 161326573 = 31 ⋅5204083.

It can be written as a sum of positive squares in only one way, i.e., 291350761 + 84272400 = 17069^2 + 9180^2 .

It is not a de Polignac number, because 375623161 - 2¹ = 375623159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (375623191) 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, 9691 + ... + 29071.

It is an arithmetic number, because the mean of its divisors is an integer number (125214181).

Almost surely, 2^375623161 is an apocalyptic number.

375623161 is the 19381-st square number.

375623161 is the 9691-st centered octagonal number.

It is an amenable number.

375623161 is a deficient number, since it is larger than the sum of its proper divisors (19382).

375623161 is an frugal number, since it uses more digits than its factorization.

375623161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38762 (or 19381 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The cubic root of 375623161 is about 721.5240101782.

The spelling of 375623161 in words is "three hundred seventy-five million, six hundred twenty-three thousand, one hundred sixty-one".