144606540 has 96 divisors (see below), whose sum is σ = 439024320. Its totient is φ = 35563008.

The previous prime is 144606521. The next prime is 144606551. The reversal of 144606540 is 45606441.

It is a super-2 number, since 2×144606540² = 41822102821543200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 144606498 and 144606507.

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, 131272 + ... + 132368.

It is an arithmetic number, because the mean of its divisors is an integer number (4573170).

Almost surely, 2^144606540 is an apocalyptic number.

144606540 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 144606540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219512160).

144606540 is an abundant number, since it is smaller than the sum of its proper divisors (294417780).

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

144606540 is a wasteful number, since it uses less digits than its factorization.

144606540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 144606540 is about 12025.2459434308. The cubic root of 144606540 is about 524.8831667457.

Subtracting from 144606540 its reverse (45606441), we obtain a palindrome (99000099).

The spelling of 144606540 in words is "one hundred forty-four million, six hundred six thousand, five hundred forty".