144057842 has 8 divisors (see below), whose sum is σ = 217014876. Its totient is φ = 71719552.

The previous prime is 144057827. The next prime is 144057853. The reversal of 144057842 is 248750441.

It can be written as a sum of positive squares in 2 ways, for example, as 136445761 + 7612081 = 11681^2 + 2759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 154103 + ... + 155034.

Almost surely, 2^144057842 is an apocalyptic number.

144057842 is a deficient number, since it is larger than the sum of its proper divisors (72957034).

144057842 is a wasteful number, since it uses less digits than its factorization.

144057842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309372.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 144057842 is about 12002.4098413610. The cubic root of 144057842 is about 524.2184495045.

The spelling of 144057842 in words is "one hundred forty-four million, fifty-seven thousand, eight hundred forty-two".