144552140 has 24 divisors (see below), whose sum is σ = 304184160. Its totient is φ = 57701888.

The previous prime is 144552137. The next prime is 144552151. The reversal of 144552140 is 41255441.

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 in 7 ways as a sum of consecutive naturals, for example, 2876 + ... + 17244.

It is an arithmetic number, because the mean of its divisors is an integer number (12674340).

Almost surely, 2^144552140 is an apocalyptic number.

144552140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144552140 is an abundant number, since it is smaller than the sum of its proper divisors (159632020).

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

144552140 is a wasteful number, since it uses less digits than its factorization.

144552140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14881 (or 14879 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 144552140 is about 12022.9838226623. The cubic root of 144552140 is about 524.8173393274.

The spelling of 144552140 in words is "one hundred forty-four million, five hundred fifty-two thousand, one hundred forty".