240143144 has 8 divisors (see below), whose sum is σ = 450268410. Its totient is φ = 120071568.

The previous prime is 240143047. The next prime is 240143179. The reversal of 240143144 is 441341042.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 124322500 + 115820644 = 11150^2 + 10762^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×240143144² = 115337459220409472, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15008939 + ... + 15008954.

Almost surely, 2^240143144 is an apocalyptic number.

It is an amenable number.

240143144 is a deficient number, since it is larger than the sum of its proper divisors (210125266).

240143144 is a wasteful number, since it uses less digits than its factorization.

240143144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30017899 (or 30017895 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 240143144 is about 15496.5526488958. The cubic root of 240143144 is about 621.5700271051.

Adding to 240143144 its reverse (441341042), we get a palindrome (681484186).

The spelling of 240143144 in words is "two hundred forty million, one hundred forty-three thousand, one hundred forty-four".