145431525222452 has 24 divisors (see below), whose sum is σ = 290936817607296. Its totient is φ = 62311989274848.

The previous prime is 145431525222397. The next prime is 145431525222499. The reversal of 145431525222452 is 254222525134541.

It is a junction number, because it is equal to n+sod(n) for n = 145431525222397 and 145431525222406.

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 7 ways as a sum of consecutive naturals, for example, 658523003 + ... + 658743810.

It is an arithmetic number, because the mean of its divisors is an integer number (12122367400304).

Almost surely, 2^{145431525222452} is an apocalyptic number.

It is an amenable number.

145431525222452 is an abundant number, since it is smaller than the sum of its proper divisors (145505292384844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145431525222452 is a wasteful number, since it uses less digits than its factorization.

145431525222452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317270767 (or 1317270765 counting only the distinct ones).

The product of its digits is 3840000, while the sum is 47.

The spelling of 145431525222452 in words is "one hundred forty-five trillion, four hundred thirty-one billion, five hundred twenty-five million, two hundred twenty-two thousand, four hundred fifty-two".