3160921481 has 4 divisors (see below), whose sum is σ = 3161391312. Its totient is φ = 3160451652.

The previous prime is 3160921471. The next prime is 3160921531. The reversal of 3160921481 is 1841290613.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3160921481 is a prime.

It is a super-2 number, since 2×3160921481² = 19982849218094466722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3160921451) 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, 224675 + ... + 238328.

It is an arithmetic number, because the mean of its divisors is an integer number (790347828).

Almost surely, 2^3160921481 is an apocalyptic number.

It is an amenable number.

3160921481 is a deficient number, since it is larger than the sum of its proper divisors (469831).

3160921481 is an equidigital number, since it uses as much as digits as its factorization.

3160921481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469830.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 3160921481 is about 56222.0728984622. The cubic root of 3160921481 is about 1467.5894100831.

The spelling of 3160921481 in words is "three billion, one hundred sixty million, nine hundred twenty-one thousand, four hundred eighty-one".