145112232520 has 64 divisors (see below), whose sum is σ = 327843936000. Its totient is φ = 57806880768.

The previous prime is 145112232511. The next prime is 145112232541. The reversal of 145112232520 is 25232211541.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10893384 + ... + 10906696.

It is an arithmetic number, because the mean of its divisors is an integer number (5122561500).

Almost surely, 2^145112232520 is an apocalyptic number.

145112232520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145112232520 is an abundant number, since it is smaller than the sum of its proper divisors (182731703480).

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

145112232520 is a wasteful number, since it uses less digits than its factorization.

145112232520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14422 (or 14418 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 145112232520 in words is "one hundred forty-five billion, one hundred twelve million, two hundred thirty-two thousand, five hundred twenty".