167481601 has 4 divisors (see below), whose sum is σ = 191407552. Its totient is φ = 143555652.

The previous prime is 167481593. The next prime is 167481617. The reversal of 167481601 is 106184761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 106184761 = 1039 ⋅102199.

It is a cyclic number.

It is not a de Polignac number, because 167481601 - 2³ = 167481593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (167487601) 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, 11962965 + ... + 11962978.

It is an arithmetic number, because the mean of its divisors is an integer number (47851888).

Almost surely, 2^167481601 is an apocalyptic number.

It is an amenable number.

167481601 is a deficient number, since it is larger than the sum of its proper divisors (23925951).

167481601 is an equidigital number, since it uses as much as digits as its factorization.

167481601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23925950.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 167481601 is about 12941.4682706407. The cubic root of 167481601 is about 551.2167014884.

The spelling of 167481601 in words is "one hundred sixty-seven million, four hundred eighty-one thousand, six hundred one".