8168140331 has 16 divisors (see below), whose sum is σ = 9329753664. Its totient is φ = 7084222464.

The previous prime is 8168140289. The next prime is 8168140349. The reversal of 8168140331 is 1330418618.

It is a cyclic number.

It is not a de Polignac number, because 8168140331 - 2²⁶ = 8101031467 is a prime.

It is a super-2 number, since 2×8168140331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8168140291 and 8168140300.

It is not an unprimeable number, because it can be changed into a prime (8168140391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99890 + ... + 162216.

It is an arithmetic number, because the mean of its divisors is an integer number (583109604).

Almost surely, 2^8168140331 is an apocalyptic number.

8168140331 is a deficient number, since it is larger than the sum of its proper divisors (1161613333).

8168140331 is a wasteful number, since it uses less digits than its factorization.

8168140331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62950.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 8168140331 is about 90377.7645828884. The cubic root of 8168140331 is about 2013.9146608463.

Adding to 8168140331 its reverse (1330418618), we get a palindrome (9498558949).

The spelling of 8168140331 in words is "eight billion, one hundred sixty-eight million, one hundred forty thousand, three hundred thirty-one".