145212245199 has 48 divisors (see below), whose sum is σ = 244374534144. Its totient is φ = 81367416000.

The previous prime is 145212245179. The next prime is 145212245203. The reversal of 145212245199 is 991542212541.

145212245199 is a `hidden beast` number, since 1 + 4 + 5 + 2 + 122 + 4 + 519 + 9 = 666.

145212245199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145212245199 - 2⁸ = 145212244943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145212245159) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 6503244 + ... + 6525534.

It is an arithmetic number, because the mean of its divisors is an integer number (5091136128).

Almost surely, 2^145212245199 is an apocalyptic number.

145212245199 is a deficient number, since it is larger than the sum of its proper divisors (99162288945).

145212245199 is a wasteful number, since it uses less digits than its factorization.

145212245199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24308 (or 24305 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The spelling of 145212245199 in words is "one hundred forty-five billion, two hundred twelve million, two hundred forty-five thousand, one hundred ninety-nine".