144322542 has 144 divisors (see below), whose sum is σ = 402594192. Its totient is φ = 37013760.

The previous prime is 144322511. The next prime is 144322547. The reversal of 144322542 is 245223441.

It is a super-2 number, since 2×144322542² = 41657992258683528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144322547) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 469953 + ... + 470259.

It is an arithmetic number, because the mean of its divisors is an integer number (2795793).

Almost surely, 2^144322542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144322542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201297096).

144322542 is an abundant number, since it is smaller than the sum of its proper divisors (258271650).

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

144322542 is a wasteful number, since it uses less digits than its factorization.

144322542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 373 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 144322542 is about 12013.4317328564. The cubic root of 144322542 is about 524.5393292276.

Adding to 144322542 its reverse (245223441), we get a palindrome (389545983).

The spelling of 144322542 in words is "one hundred forty-four million, three hundred twenty-two thousand, five hundred forty-two".