144811530 has 64 divisors (see below), whose sum is σ = 395176320. Its totient is φ = 37715328.

The previous prime is 144811523. The next prime is 144811607. The reversal of 144811530 is 35118441.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 144811494 and 144811503.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5374 + ... + 17846.

It is an arithmetic number, because the mean of its divisors is an integer number (6174630).

Almost surely, 2^144811530 is an apocalyptic number.

144811530 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 144811530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197588160).

144811530 is an abundant number, since it is smaller than the sum of its proper divisors (250364790).

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

144811530 is a wasteful number, since it uses less digits than its factorization.

144811530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12532 (or 12526 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 144811530 is about 12033.7662433670. The cubic root of 144811530 is about 525.1310693159.

Adding to 144811530 its reverse (35118441), we get a palindrome (179929971).

The spelling of 144811530 in words is "one hundred forty-four million, eight hundred eleven thousand, five hundred thirty".