7172081331 has 8 divisors (see below), whose sum is σ = 9563219904. Its totient is φ = 4781165160.

The previous prime is 7172081219. The next prime is 7172081339. The reversal of 7172081331 is 1331802717.

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

It is not a de Polignac number, because 7172081331 - 2¹⁴ = 7172064947 is a prime.

It is a super-2 number, since 2×7172081331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7172081292 and 7172081301.

It is not an unprimeable number, because it can be changed into a prime (7172081339) 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, 46360 + ... + 128426.

It is an arithmetic number, because the mean of its divisors is an integer number (1195402488).

Almost surely, 2^7172081331 is an apocalyptic number.

7172081331 is a deficient number, since it is larger than the sum of its proper divisors (2391138573).

7172081331 is a wasteful number, since it uses less digits than its factorization.

7172081331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111201.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 7172081331 is about 84688.1416197097. The cubic root of 7172081331 is about 1928.4796864147.

The spelling of 7172081331 in words is "seven billion, one hundred seventy-two million, eighty-one thousand, three hundred thirty-one".