3161657213 has 8 divisors (see below), whose sum is σ = 3714394656. Its totient is φ = 2653138800.

The previous prime is 3161657201. The next prime is 3161657221. The reversal of 3161657213 is 3127561613.

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

It is not a de Polignac number, because 3161657213 - 2¹⁴ = 3161640829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161657273) 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, 11054603 + ... + 11054888.

It is an arithmetic number, because the mean of its divisors is an integer number (464299332).

Almost surely, 2^3161657213 is an apocalyptic number.

It is an amenable number.

3161657213 is a deficient number, since it is larger than the sum of its proper divisors (552737443).

3161657213 is a wasteful number, since it uses less digits than its factorization.

3161657213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22109515.

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

The square root of 3161657213 is about 56228.6156062907. The cubic root of 3161657213 is about 1467.7032659883.

The spelling of 3161657213 in words is "three billion, one hundred sixty-one million, six hundred fifty-seven thousand, two hundred thirteen".