144557500 has 60 divisors (see below), whose sum is σ = 322378056. Its totient is φ = 56680000.

The previous prime is 144557473. The next prime is 144557503. The reversal of 144557500 is 5755441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144557503) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 131955 + ... + 133045.

Almost surely, 2^144557500 is an apocalyptic number.

144557500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144557500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161189028).

144557500 is an abundant number, since it is smaller than the sum of its proper divisors (177820556).

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

144557500 is a wasteful number, since it uses less digits than its factorization.

144557500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 144557500 is about 12023.2067269926. The cubic root of 144557500 is about 524.8238259976.

The spelling of 144557500 in words is "one hundred forty-four million, five hundred fifty-seven thousand, five hundred".