144364636 has 24 divisors (see below), whose sum is σ = 277865280. Its totient is φ = 65211072.

The previous prime is 144364621. The next prime is 144364637. The reversal of 144364636 is 636463441.

It is a super-2 number, since 2×144364636² = 41682296254824992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144364595 and 144364604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144364637) 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, 27091 + ... + 31978.

It is an arithmetic number, because the mean of its divisors is an integer number (11577720).

Almost surely, 2^144364636 is an apocalyptic number.

It is an amenable number.

144364636 is a deficient number, since it is larger than the sum of its proper divisors (133500644).

144364636 is a wasteful number, since it uses less digits than its factorization.

144364636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59133 (or 59131 counting only the distinct ones).

The product of its digits is 124416, while the sum is 37.

The square root of 144364636 is about 12015.1835608117. The cubic root of 144364636 is about 524.5903210591.

The spelling of 144364636 in words is "one hundred forty-four million, three hundred sixty-four thousand, six hundred thirty-six".