167543489 has 4 divisors (see below), whose sum is σ = 169109424. Its totient is φ = 165977556.

The previous prime is 167543471. The next prime is 167543491. The reversal of 167543489 is 984345761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 167543489 - 2¹⁶ = 167477953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167543419) 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 in 3 ways as a sum of consecutive naturals, for example, 782807 + ... + 783020.

It is an arithmetic number, because the mean of its divisors is an integer number (42277356).

Almost surely, 2^167543489 is an apocalyptic number.

It is an amenable number.

167543489 is a deficient number, since it is larger than the sum of its proper divisors (1565935).

167543489 is a wasteful number, since it uses less digits than its factorization.

167543489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565934.

The product of its digits is 725760, while the sum is 47.

The square root of 167543489 is about 12943.8591231518. The cubic root of 167543489 is about 551.2845885438.

The spelling of 167543489 in words is "one hundred sixty-seven million, five hundred forty-three thousand, four hundred eighty-nine".