145244042 has 8 divisors (see below), whose sum is σ = 218427300. Its totient is φ = 72434944.

The previous prime is 145244041. The next prime is 145244059. The reversal of 145244042 is 240442541.

It can be written as a sum of positive squares in 2 ways, for example, as 137851081 + 7392961 = 11741^2 + 2719^2 .

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

It is not an unprimeable number, because it can be changed into a prime (145244041) by changing a digit.

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, 92567 + ... + 94122.

Almost surely, 2^145244042 is an apocalyptic number.

145244042 is a deficient number, since it is larger than the sum of its proper divisors (73183258).

145244042 is a wasteful number, since it uses less digits than its factorization.

145244042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187080.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 145244042 is about 12051.7236111687. The cubic root of 145244042 is about 525.6533567865.

Adding to 145244042 its reverse (240442541), we get a palindrome (385686583).

The spelling of 145244042 in words is "one hundred forty-five million, two hundred forty-four thousand, forty-two".