144369140 has 12 divisors (see below), whose sum is σ = 303175236. Its totient is φ = 57747648.

The previous prime is 144369133. The next prime is 144369167. The reversal of 144369140 is 41963441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44249104 + 100120036 = 6652^2 + 10006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144369097 and 144369106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3609209 + ... + 3609248.

It is an arithmetic number, because the mean of its divisors is an integer number (25264603).

Almost surely, 2^144369140 is an apocalyptic number.

144369140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144369140 is an abundant number, since it is smaller than the sum of its proper divisors (158806096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144369140 is a wasteful number, since it uses less digits than its factorization.

144369140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7218466 (or 7218464 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 144369140 is about 12015.3709888626. The cubic root of 144369140 is about 524.5957765277.

The spelling of 144369140 in words is "one hundred forty-four million, three hundred sixty-nine thousand, one hundred forty".