144621246 has 96 divisors (see below), whose sum is σ = 370541952. Its totient is φ = 37208640.

The previous prime is 144621241. The next prime is 144621283. The reversal of 144621246 is 642126441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144621241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 636985 + ... + 637211.

It is an arithmetic number, because the mean of its divisors is an integer number (3859812).

Almost surely, 2^144621246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144621246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185270976).

144621246 is an abundant number, since it is smaller than the sum of its proper divisors (225920706).

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

144621246 is a wasteful number, since it uses less digits than its factorization.

144621246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 447 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 144621246 is about 12025.8573914711. The cubic root of 144621246 is about 524.9009590950.

Adding to 144621246 its reverse (642126441), we get a palindrome (786747687).

The spelling of 144621246 in words is "one hundred forty-four million, six hundred twenty-one thousand, two hundred forty-six".