145515511210252 has 12 divisors (see below), whose sum is σ = 257720242746456. Its totient is φ = 71881156139840.

The previous prime is 145515511210219. The next prime is 145515511210253. The reversal of 145515511210252 is 252012115515541.

It is not an unprimeable number, because it can be changed into a prime (145515511210253) 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 3 ways as a sum of consecutive naturals, for example, 219149865949 + ... + 219149866612.

It is an arithmetic number, because the mean of its divisors is an integer number (21476686895538).

Almost surely, 2^{145515511210252} is an apocalyptic number.

It is an amenable number.

145515511210252 is a deficient number, since it is larger than the sum of its proper divisors (112204731536204).

145515511210252 is a wasteful number, since it uses less digits than its factorization.

145515511210252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438299732648 (or 438299732646 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 40.

Adding to 145515511210252 its reverse (252012115515541), we get a palindrome (397527626725793).

The spelling of 145515511210252 in words is "one hundred forty-five trillion, five hundred fifteen billion, five hundred eleven million, two hundred ten thousand, two hundred fifty-two".