167561027 has 4 divisors (see below), whose sum is σ = 177417576. Its totient is φ = 157704480.

The previous prime is 167561021. The next prime is 167561029. The reversal of 167561027 is 720165761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167561027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (167561021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4928249 + ... + 4928282.

It is an arithmetic number, because the mean of its divisors is an integer number (44354394).

Almost surely, 2^167561027 is an apocalyptic number.

167561027 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

167561027 is a deficient number, since it is larger than the sum of its proper divisors (9856549).

167561027 is an equidigital number, since it uses as much as digits as its factorization.

167561027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9856548.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 167561027 is about 12944.5365695339. The cubic root of 167561027 is about 551.3038235333.

The spelling of 167561027 in words is "one hundred sixty-seven million, five hundred sixty-one thousand, twenty-seven".