144214636 has 12 divisors (see below), whose sum is σ = 265658680. Its totient is φ = 68312160.

The previous prime is 144214633. The next prime is 144214649. The reversal of 144214636 is 636412441.

It is a super-2 number, since 2×144214636² = 41595722473224992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144214598 and 144214607.

It is not an unprimeable number, because it can be changed into a prime (144214633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948705 + ... + 948856.

Almost surely, 2^144214636 is an apocalyptic number.

It is an amenable number.

144214636 is a deficient number, since it is larger than the sum of its proper divisors (121444044).

144214636 is a wasteful number, since it uses less digits than its factorization.

144214636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897584 (or 1897582 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 144214636 is about 12008.9398366384. The cubic root of 144214636 is about 524.4085687512.

The spelling of 144214636 in words is "one hundred forty-four million, two hundred fourteen thousand, six hundred thirty-six".