32775161 has 4 divisors (see below), whose sum is σ = 34200192. Its totient is φ = 31350132.

The previous prime is 32775157. The next prime is 32775173. The reversal of 32775161 is 16157723.

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: 16157723 = 43 ⋅375761.

It is a cyclic number.

It is not a de Polignac number, because 32775161 - 2² = 32775157 is a prime.

It is a super-2 number, since 2×32775161² = 2148422357151842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32775131) 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, 712481 + ... + 712526.

It is an arithmetic number, because the mean of its divisors is an integer number (8550048).

Almost surely, 2^32775161 is an apocalyptic number.

It is an amenable number.

32775161 is a deficient number, since it is larger than the sum of its proper divisors (1425031).

32775161 is a wasteful number, since it uses less digits than its factorization.

32775161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425030.

The product of its digits is 8820, while the sum is 32.

The square root of 32775161 is about 5724.9594758391. The cubic root of 32775161 is about 320.0233088490.

The spelling of 32775161 in words is "thirty-two million, seven hundred seventy-five thousand, one hundred sixty-one".