144939550 has 36 divisors (see below), whose sum is σ = 313607160. Its totient is φ = 49692720.

The previous prime is 144939547. The next prime is 144939611. The reversal of 144939550 is 55939441.

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 27130 + ... + 32029.

It is an arithmetic number, because the mean of its divisors is an integer number (8711310).

Almost surely, 2^144939550 is an apocalyptic number.

144939550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144939550 is an abundant number, since it is smaller than the sum of its proper divisors (168667610).

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

144939550 is a wasteful number, since it uses less digits than its factorization.

144939550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59185 (or 59173 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 144939550 is about 12039.0842675014. The cubic root of 144939550 is about 525.2857703459.

The spelling of 144939550 in words is "one hundred forty-four million, nine hundred thirty-nine thousand, five hundred fifty".