144855542 has 16 divisors (see below), whose sum is σ = 239706432. Its totient is φ = 65225280.

The previous prime is 144855539. The next prime is 144855593. The reversal of 144855542 is 245558441.

It is a happy number.

It is a super-2 number, since 2×144855542² = 41966256096227528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144855496 and 144855505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66878 + ... + 69009.

It is an arithmetic number, because the mean of its divisors is an integer number (14981652).

Almost surely, 2^144855542 is an apocalyptic number.

144855542 is a deficient number, since it is larger than the sum of its proper divisors (94850890).

144855542 is a wasteful number, since it uses less digits than its factorization.

144855542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135943.

The product of its digits is 128000, while the sum is 38.

The square root of 144855542 is about 12035.5947921156. The cubic root of 144855542 is about 525.1842642688.

The spelling of 144855542 in words is "one hundred forty-four million, eight hundred fifty-five thousand, five hundred forty-two".