144540450 has 120 divisors (see below), whose sum is σ = 407133540. Its totient is φ = 38016000.

The previous prime is 144540419. The next prime is 144540469. The reversal of 144540450 is 54045441.

It can be written as a sum of positive squares in 6 ways, for example, as 77316849 + 67223601 = 8793^2 + 8199^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 360250 + ... + 360650.

Almost surely, 2^144540450 is an apocalyptic number.

144540450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144540450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203566770).

144540450 is an abundant number, since it is smaller than the sum of its proper divisors (262593090).

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

144540450 is a wasteful number, since it uses less digits than its factorization.

144540450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 144540450 is about 12022.4976606361. The cubic root of 144540450 is about 524.8031915371.

Adding to 144540450 its reverse (54045441), we get a palindrome (198585891).

The spelling of 144540450 in words is "one hundred forty-four million, five hundred forty thousand, four hundred fifty".