168545427 has 8 divisors (see below), whose sum is σ = 225214464. Its totient is φ = 112120008.

The previous prime is 168545411. The next prime is 168545479. The reversal of 168545427 is 724545861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 168545427 - 2⁴ = 168545411 is a prime.

It is a super-2 number, since 2×168545427² = 56815121925224658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168545227) 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 7 ways as a sum of consecutive naturals, for example, 59283 + ... + 62060.

It is an arithmetic number, because the mean of its divisors is an integer number (28151808).

Almost surely, 2^168545427 is an apocalyptic number.

168545427 is a deficient number, since it is larger than the sum of its proper divisors (56669037).

168545427 is a wasteful number, since it uses less digits than its factorization.

168545427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121809.

The product of its digits is 268800, while the sum is 42.

The square root of 168545427 is about 12982.5046504902. The cubic root of 168545427 is about 552.3813297950.

The spelling of 168545427 in words is "one hundred sixty-eight million, five hundred forty-five thousand, four hundred twenty-seven".