356727161 has 4 divisors (see below), whose sum is σ = 407688192. Its totient is φ = 305766132.

The previous prime is 356727139. The next prime is 356727181. The reversal of 356727161 is 161727653.

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: 161727653 = 61 ⋅2651273.

It is a de Polignac number, because none of the positive numbers 2^k-356727161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (356727181) 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, 25480505 + ... + 25480518.

It is an arithmetic number, because the mean of its divisors is an integer number (101922048).

Almost surely, 2^356727161 is an apocalyptic number.

It is an amenable number.

356727161 is a deficient number, since it is larger than the sum of its proper divisors (50961031).

356727161 is an equidigital number, since it uses as much as digits as its factorization.

356727161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50961030.

The product of its digits is 52920, while the sum is 38.

The square root of 356727161 is about 18887.2221620862. Note that the first 3 decimals coincide. The cubic root of 356727161 is about 709.2163283478.

The spelling of 356727161 in words is "three hundred fifty-six million, seven hundred twenty-seven thousand, one hundred sixty-one".