145531124004 has 48 divisors (see below), whose sum is σ = 388509198336. Its totient is φ = 41534656800.

The previous prime is 145531123999. The next prime is 145531124021. The reversal of 145531124004 is 400421135541.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874362 + ... + 1027409.

It is an arithmetic number, because the mean of its divisors is an integer number (8093941632).

Almost surely, 2^145531124004 is an apocalyptic number.

145531124004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145531124004 is an abundant number, since it is smaller than the sum of its proper divisors (242978074332).

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

145531124004 is a wasteful number, since it uses less digits than its factorization.

145531124004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902696 (or 1902694 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 145531124004 its reverse (400421135541), we get a palindrome (545952259545).

The spelling of 145531124004 in words is "one hundred forty-five billion, five hundred thirty-one million, one hundred twenty-four thousand, four".