145044442 has 16 divisors (see below), whose sum is σ = 242490240. Its totient is φ = 64663488.

The previous prime is 145044439. The next prime is 145044467. The reversal of 145044442 is 244440541.

145044442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145044442.

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, 111618 + ... + 112909.

It is an arithmetic number, because the mean of its divisors is an integer number (15155640).

Almost surely, 2^145044442 is an apocalyptic number.

145044442 is a deficient number, since it is larger than the sum of its proper divisors (97445798).

145044442 is a wasteful number, since it uses less digits than its factorization.

145044442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224565.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 145044442 is about 12043.4397910232. The cubic root of 145044442 is about 525.4124553189.

Adding to 145044442 its reverse (244440541), we get a palindrome (389484983).

The spelling of 145044442 in words is "one hundred forty-five million, forty-four thousand, four hundred forty-two".