168224037 has 8 divisors (see below), whose sum is σ = 224421600. Its totient is φ = 112087920.

The previous prime is 168224033. The next prime is 168224051. The reversal of 168224037 is 730422861.

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

It is not a de Polignac number, because 168224037 - 2² = 168224033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168223989 and 168224007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168224033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8539 + ... + 20232.

It is an arithmetic number, because the mean of its divisors is an integer number (28052700).

Almost surely, 2^168224037 is an apocalyptic number.

It is an amenable number.

168224037 is a deficient number, since it is larger than the sum of its proper divisors (56197563).

168224037 is a wasteful number, since it uses less digits than its factorization.

168224037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30723.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 168224037 is about 12970.1209323583. The cubic root of 168224037 is about 552.0300045390.

Adding to 168224037 its reverse (730422861), we get a palindrome (898646898).

The spelling of 168224037 in words is "one hundred sixty-eight million, two hundred twenty-four thousand, thirty-seven".