3213657161 has 8 divisors (see below), whose sum is σ = 3775485504. Its totient is φ = 2696775120.

The previous prime is 3213657151. The next prime is 3213657179. The reversal of 3213657161 is 1617563123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3213657161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3213657151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11236421 + ... + 11236706.

It is an arithmetic number, because the mean of its divisors is an integer number (471935688).

Almost surely, 2^3213657161 is an apocalyptic number.

It is an amenable number.

3213657161 is a deficient number, since it is larger than the sum of its proper divisors (561828343).

3213657161 is a wasteful number, since it uses less digits than its factorization.

3213657161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22473151.

The product of its digits is 22680, while the sum is 35.

The square root of 3213657161 is about 56689.1273614262. The cubic root of 3213657161 is about 1475.7060162738.

The spelling of 3213657161 in words is "three billion, two hundred thirteen million, six hundred fifty-seven thousand, one hundred sixty-one".