167011381 has 2 divisors, whose sum is σ = 167011382. Its totient is φ = 167011380.

The previous prime is 167011379. The next prime is 167011483. The reversal of 167011381 is 183110761.

167011381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144600625 + 22410756 = 12025^2 + 4734^2 .

It is a cyclic number.

It is not a de Polignac number, because 167011381 - 2¹ = 167011379 is a prime.

It is a super-2 number, since 2×167011381² = 55785602767054322, which contains 22 as substring.

Together with 167011379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167011301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83505690 + 83505691.

It is an arithmetic number, because the mean of its divisors is an integer number (83505691).

Almost surely, 2^167011381 is an apocalyptic number.

It is an amenable number.

167011381 is a deficient number, since it is larger than the sum of its proper divisors (1).

167011381 is an equidigital number, since it uses as much as digits as its factorization.

167011381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 167011381 is about 12923.2883199285. The cubic root of 167011381 is about 550.7003540918.

The spelling of 167011381 in words is "one hundred sixty-seven million, eleven thousand, three hundred eighty-one".