145205122201052 has 24 divisors (see below), whose sum is σ = 257697038753280. Its totient is φ = 71577468870320.

The previous prime is 145205122201039. The next prime is 145205122201081. The reversal of 145205122201052 is 250102221502541.

It is a congruent number.

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, 912488 + ... + 17065839.

It is an arithmetic number, because the mean of its divisors is an integer number (10737376614720).

Almost surely, 2^{145205122201052} is an apocalyptic number.

It is an amenable number.

145205122201052 is a deficient number, since it is larger than the sum of its proper divisors (112491916552228).

145205122201052 is a wasteful number, since it uses less digits than its factorization.

145205122201052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18006841 (or 18006839 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 145205122201052 its reverse (250102221502541), we get a palindrome (395307343703593).

The spelling of 145205122201052 in words is "one hundred forty-five trillion, two hundred five billion, one hundred twenty-two million, two hundred one thousand, fifty-two".