167921361 has 12 divisors (see below), whose sum is σ = 244182900. Its totient is φ = 111195360.

The previous prime is 167921357. The next prime is 167921399. The reversal of 167921361 is 163129761.

It can be written as a sum of positive squares in 2 ways, for example, as 58614336 + 109307025 = 7656^2 + 10455^2 .

It is not a de Polignac number, because 167921361 - 2² = 167921357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (167921261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61270 + ... + 63951.

It is an arithmetic number, because the mean of its divisors is an integer number (20348575).

Almost surely, 2^167921361 is an apocalyptic number.

It is an amenable number.

167921361 is a deficient number, since it is larger than the sum of its proper divisors (76261539).

167921361 is a wasteful number, since it uses less digits than its factorization.

167921361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125376 (or 125373 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 167921361 is about 12958.4474764533. The cubic root of 167921361 is about 551.6987269829.

The spelling of 167921361 in words is "one hundred sixty-seven million, nine hundred twenty-one thousand, three hundred sixty-one".