145040242 has 16 divisors (see below), whose sum is σ = 220320000. Its totient is φ = 71604400.

The previous prime is 145040237. The next prime is 145040267. The reversal of 145040242 is 242040541.

It is a happy number.

145040242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96009 + ... + 97507.

It is an arithmetic number, because the mean of its divisors is an integer number (13770000).

Almost surely, 2^145040242 is an apocalyptic number.

145040242 is a deficient number, since it is larger than the sum of its proper divisors (75279758).

145040242 is a wasteful number, since it uses less digits than its factorization.

145040242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 145040242 is about 12043.2654209728. The cubic root of 145040242 is about 525.4073838764.

Adding to 145040242 its reverse (242040541), we get a palindrome (387080783).

The spelling of 145040242 in words is "one hundred forty-five million, forty thousand, two hundred forty-two".