167749546 has 4 divisors (see below), whose sum is σ = 251624322. Its totient is φ = 83874772.

The previous prime is 167749541. The next prime is 167749577. The reversal of 167749546 is 645947761.

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

It can be written as a sum of positive squares in only one way, i.e., 103124025 + 64625521 = 10155^2 + 8039^2 .

It is a super-2 number, since 2×167749546² = 56279820366412232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 167749546.

It is not an unprimeable number, because it can be changed into a prime (167749541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41937385 + ... + 41937388.

Almost surely, 2^167749546 is an apocalyptic number.

167749546 is a deficient number, since it is larger than the sum of its proper divisors (83874776).

167749546 is an equidigital number, since it uses as much as digits as its factorization.

167749546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83874775.

The product of its digits is 1270080, while the sum is 49.

The square root of 167749546 is about 12951.8163205012. The cubic root of 167749546 is about 551.5104990649.

The spelling of 167749546 in words is "one hundred sixty-seven million, seven hundred forty-nine thousand, five hundred forty-six".