144220552 has 32 divisors (see below), whose sum is σ = 313286400. Its totient is φ = 60960384.

The previous prime is 144220547. The next prime is 144220613. The reversal of 144220552 is 255022441.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13552 + ... + 21727.

It is an arithmetic number, because the mean of its divisors is an integer number (9790200).

Almost surely, 2^144220552 is an apocalyptic number.

It is an amenable number.

144220552 is an abundant number, since it is smaller than the sum of its proper divisors (169065848).

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

144220552 is a wasteful number, since it uses less digits than its factorization.

144220552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35365 (or 35361 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 144220552 is about 12009.1861506099. The cubic root of 144220552 is about 524.4157394489.

Adding to 144220552 its reverse (255022441), we get a palindrome (399242993).

The spelling of 144220552 in words is "one hundred forty-four million, two hundred twenty thousand, five hundred fifty-two".