144689134469 has 8 divisors (see below), whose sum is σ = 167127556608. Its totient is φ = 123798189760.

The previous prime is 144689134463. The next prime is 144689134493. The reversal of 144689134469 is 964431986441.

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-144689134469 is a prime.

It is a super-2 number, since 2×144689134469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144689134463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386869157 + ... + 386869530.

It is an arithmetic number, because the mean of its divisors is an integer number (20890944576).

Almost surely, 2^144689134469 is an apocalyptic number.

It is an amenable number.

144689134469 is a deficient number, since it is larger than the sum of its proper divisors (22438422139).

144689134469 is a wasteful number, since it uses less digits than its factorization.

144689134469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773738715.

The product of its digits is 17915904, while the sum is 59.

The spelling of 144689134469 in words is "one hundred forty-four billion, six hundred eighty-nine million, one hundred thirty-four thousand, four hundred sixty-nine".