145198042228 has 12 divisors (see below), whose sum is σ = 254100095172. Its totient is φ = 72598015040.

The previous prime is 145198042193. The next prime is 145198042267. The reversal of 145198042228 is 822240891541.

It is a happy number.

145198042228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12018298384 + 133179743844 = 109628^2 + 364938^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141408 + ... + 557128.

It is an arithmetic number, because the mean of its divisors is an integer number (21175007931).

Almost surely, 2^145198042228 is an apocalyptic number.

It is an amenable number.

145198042228 is a deficient number, since it is larger than the sum of its proper divisors (108902052944).

145198042228 is a wasteful number, since it uses less digits than its factorization.

145198042228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503042 (or 503040 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 145198042228 in words is "one hundred forty-five billion, one hundred ninety-eight million, forty-two thousand, two hundred twenty-eight".