167822461 has 2 divisors, whose sum is σ = 167822462. Its totient is φ = 167822460.

The previous prime is 167822443. The next prime is 167822533. The reversal of 167822461 is 164228761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126990361 + 40832100 = 11269^2 + 6390^2 .

It is a cyclic number.

It is not a de Polignac number, because 167822461 - 2²¹ = 165725309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 167822461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167822411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83911230 + 83911231.

It is an arithmetic number, because the mean of its divisors is an integer number (83911231).

Almost surely, 2^167822461 is an apocalyptic number.

It is an amenable number.

167822461 is a deficient number, since it is larger than the sum of its proper divisors (1).

167822461 is an equidigital number, since it uses as much as digits as its factorization.

167822461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The square root of 167822461 is about 12954.6308708508. The cubic root of 167822461 is about 551.5903950844.

The spelling of 167822461 in words is "one hundred sixty-seven million, eight hundred twenty-two thousand, four hundred sixty-one".