168001449 has 48 divisors (see below), whose sum is σ = 287214336. Its totient is φ = 86368800.

The previous prime is 168001447. The next prime is 168001451. The reversal of 168001449 is 944100861.

It is an interprime number because it is at equal distance from previous prime (168001447) and next prime (168001451).

It is not a de Polignac number, because 168001449 - 2¹ = 168001447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168001447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172534 + ... + 173504.

It is an arithmetic number, because the mean of its divisors is an integer number (5983632).

Almost surely, 2^168001449 is an apocalyptic number.

It is an amenable number.

168001449 is a deficient number, since it is larger than the sum of its proper divisors (119212887).

168001449 is a wasteful number, since it uses less digits than its factorization.

168001449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 168001449 is about 12961.5372930837. The cubic root of 168001449 is about 551.7864216531.

The spelling of 168001449 in words is "one hundred sixty-eight million, one thousand, four hundred forty-nine".