167481549 has 6 divisors (see below), whose sum is σ = 241917806. Its totient is φ = 111654360.

The previous prime is 167481521. The next prime is 167481553. The reversal of 167481549 is 945184761.

167481549 is a `hidden beast` number, since 1 + 67 + 48 + 1 + 549 = 666.

It can be written as a sum of positive squares in only one way, i.e., 141776649 + 25704900 = 11907^2 + 5070^2 .

It is not a de Polignac number, because 167481549 - 2⁹ = 167481037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167481649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9304522 + ... + 9304539.

Almost surely, 2^167481549 is an apocalyptic number.

It is an amenable number.

167481549 is a deficient number, since it is larger than the sum of its proper divisors (74436257).

167481549 is a wasteful number, since it uses less digits than its factorization.

167481549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18609067 (or 18609064 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 167481549 is about 12941.4662615949. The cubic root of 167481549 is about 551.2166444408.

It can be divided in two parts, 1674 and 81549, that multiplied together give a triangular number (136513026 = T₁₆₅₂₃).

The spelling of 167481549 in words is "one hundred sixty-seven million, four hundred eighty-one thousand, five hundred forty-nine".