8168031461 has 2 divisors, whose sum is σ = 8168031462. Its totient is φ = 8168031460.

The previous prime is 8168031451. The next prime is 8168031479. The reversal of 8168031461 is 1641308618.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5199852100 + 2968179361 = 72110^2 + 54481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8168031461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8168031451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4084015730 + 4084015731.

It is an arithmetic number, because the mean of its divisors is an integer number (4084015731).

Almost surely, 2^8168031461 is an apocalyptic number.

It is an amenable number.

8168031461 is a deficient number, since it is larger than the sum of its proper divisors (1).

8168031461 is an equidigital number, since it uses as much as digits as its factorization.

8168031461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 8168031461 is about 90377.1622756546. The cubic root of 8168031461 is about 2013.9057132420.

The spelling of 8168031461 in words is "eight billion, one hundred sixty-eight million, thirty-one thousand, four hundred sixty-one".