3236772161 has 4 divisors (see below), whose sum is σ = 3699168192. Its totient is φ = 2774376132.

The previous prime is 3236772107. The next prime is 3236772181. The reversal of 3236772161 is 1612776323.

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: 1612776323 = 1609 ⋅1002347.

It is a cyclic number.

It is not a de Polignac number, because 3236772161 - 2¹⁴ = 3236755777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3236772181) 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, 231198005 + ... + 231198018.

It is an arithmetic number, because the mean of its divisors is an integer number (924792048).

Almost surely, 2^3236772161 is an apocalyptic number.

It is an amenable number.

3236772161 is a deficient number, since it is larger than the sum of its proper divisors (462396031).

3236772161 is an equidigital number, since it uses as much as digits as its factorization.

3236772161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462396030.

The product of its digits is 63504, while the sum is 38.

The square root of 3236772161 is about 56892.6371422524. The cubic root of 3236772161 is about 1479.2356902445.

The spelling of 3236772161 in words is "three billion, two hundred thirty-six million, seven hundred seventy-two thousand, one hundred sixty-one".