144682169 has 8 divisors (see below), whose sum is σ = 153142080. Its totient is φ = 136306800.

The previous prime is 144682163. The next prime is 144682171. The reversal of 144682169 is 961286441.

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-144682169 is a prime.

It is a super-2 number, since 2×144682169² = 41865860053089122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144682163) 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, 17597 + ... + 24474.

It is an arithmetic number, because the mean of its divisors is an integer number (19142760).

Almost surely, 2^144682169 is an apocalyptic number.

144682169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

144682169 is a deficient number, since it is larger than the sum of its proper divisors (8459911).

144682169 is a wasteful number, since it uses less digits than its factorization.

144682169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42271.

The product of its digits is 82944, while the sum is 41.

The square root of 144682169 is about 12028.3901250334. The cubic root of 144682169 is about 524.9746551635.

The spelling of 144682169 in words is "one hundred forty-four million, six hundred eighty-two thousand, one hundred sixty-nine".