168949537 has 8 divisors (see below), whose sum is σ = 176558976. Its totient is φ = 161507472.

The previous prime is 168949523. The next prime is 168949579. The reversal of 168949537 is 735949861.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168949537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168944537) 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, 39778 + ... + 43819.

It is an arithmetic number, because the mean of its divisors is an integer number (22069872).

Almost surely, 2^168949537 is an apocalyptic number.

It is an amenable number.

168949537 is a deficient number, since it is larger than the sum of its proper divisors (7609439).

168949537 is an equidigital number, since it uses as much as digits as its factorization.

168949537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83687.

The product of its digits is 1632960, while the sum is 52.

The square root of 168949537 is about 12998.0589704771. The cubic root of 168949537 is about 552.8224465873.

The spelling of 168949537 in words is "one hundred sixty-eight million, nine hundred forty-nine thousand, five hundred thirty-seven".