368648161 has 4 divisors (see below), whose sum is σ = 421312192. Its totient is φ = 315984132.

The previous prime is 368648143. The next prime is 368648167. The reversal of 368648161 is 161846863.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161846863 = 173 ⋅935531.

It is a cyclic number.

It is not a de Polignac number, because 368648161 - 2⁵ = 368648129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (368648167) 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, 26332005 + ... + 26332018.

It is an arithmetic number, because the mean of its divisors is an integer number (105328048).

Almost surely, 2^368648161 is an apocalyptic number.

It is an amenable number.

368648161 is a deficient number, since it is larger than the sum of its proper divisors (52664031).

368648161 is an equidigital number, since it uses as much as digits as its factorization.

368648161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52664030.

The product of its digits is 165888, while the sum is 43.

The square root of 368648161 is about 19200.2125248654. The cubic root of 368648161 is about 717.0300506057.

The spelling of 368648161 in words is "three hundred sixty-eight million, six hundred forty-eight thousand, one hundred sixty-one".