167861101 has 2 divisors, whose sum is σ = 167861102. Its totient is φ = 167861100.

The previous prime is 167861087. The next prime is 167861131. The reversal of 167861101 is 101168761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162690025 + 5171076 = 12755^2 + 2274^2 .

It is an emirp because it is prime and its reverse (101168761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 167861101 - 2⁵ = 167861069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167861131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83930550 + 83930551.

It is an arithmetic number, because the mean of its divisors is an integer number (83930551).

Almost surely, 2^167861101 is an apocalyptic number.

It is an amenable number.

167861101 is a deficient number, since it is larger than the sum of its proper divisors (1).

167861101 is an equidigital number, since it uses as much as digits as its factorization.

167861101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 167861101 is about 12956.1221436045. The cubic root of 167861101 is about 551.6327251698.

The spelling of 167861101 in words is "one hundred sixty-seven million, eight hundred sixty-one thousand, one hundred one".