144140618 has 4 divisors (see below), whose sum is σ = 216210930. Its totient is φ = 72070308.

The previous prime is 144140597. The next prime is 144140627. The reversal of 144140618 is 816041441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 138697729 + 5442889 = 11777^2 + 2333^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 36035153 + ... + 36035156.

Almost surely, 2^144140618 is an apocalyptic number.

144140618 is a deficient number, since it is larger than the sum of its proper divisors (72070312).

144140618 is an equidigital number, since it uses as much as digits as its factorization.

144140618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72070311.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 144140618 is about 12005.8576536622. The cubic root of 144140618 is about 524.3188360280.

The spelling of 144140618 in words is "one hundred forty-four million, one hundred forty thousand, six hundred eighteen".