167561043 has 16 divisors (see below), whose sum is σ = 248898720. Its totient is φ = 99558144.

The previous prime is 167561039. The next prime is 167561077. The reversal of 167561043 is 340165761.

It is not a de Polignac number, because 167561043 - 2² = 167561039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 167560995 and 167561013.

It is not an unprimeable number, because it can be changed into a prime (167561243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72946 + ... + 75207.

It is an arithmetic number, because the mean of its divisors is an integer number (15556170).

Almost surely, 2^167561043 is an apocalyptic number.

167561043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

167561043 is a deficient number, since it is larger than the sum of its proper divisors (81337677).

167561043 is a wasteful number, since it uses less digits than its factorization.

167561043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148198.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 167561043 is about 12944.5371875552. The cubic root of 167561043 is about 551.3038410809.

The spelling of 167561043 in words is "one hundred sixty-seven million, five hundred sixty-one thousand, forty-three".