144745542 has 40 divisors (see below), whose sum is σ = 327248856. Its totient is φ = 47815488.

The previous prime is 144745537. The next prime is 144745543. The reversal of 144745542 is 245547441.

144745542 is a `hidden beast` number, since 1 + 44 + 74 + 5 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 144745497 and 144745506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144745543) 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, 14353 + ... + 22259.

Almost surely, 2^144745542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144745542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163624428).

144745542 is an abundant number, since it is smaller than the sum of its proper divisors (182503314).

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

144745542 is a wasteful number, since it uses less digits than its factorization.

144745542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8034 (or 8025 counting only the distinct ones).

The product of its digits is 89600, while the sum is 36.

The square root of 144745542 is about 12031.0241459320. The cubic root of 144745542 is about 525.0512929477.

The spelling of 144745542 in words is "one hundred forty-four million, seven hundred forty-five thousand, five hundred forty-two".