145231031250 has 84 divisors (see below), whose sum is σ = 393329770002. Its totient is φ = 38728200000.

The previous prime is 145231031233. The next prime is 145231031269. The reversal of 145231031250 is 52130132541.

145231031250 is a `hidden beast` number, since 1 + 4 + 523 + 10 + 3 + 125 + 0 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 34695395289 + 110535635961 = 186267^2 + 332469^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 23062 + ... + 539438.

Almost surely, 2^145231031250 is an apocalyptic number.

145231031250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145231031250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196664885001).

145231031250 is an abundant number, since it is smaller than the sum of its proper divisors (248098738752).

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

145231031250 is an frugal number, since it uses more digits than its factorization.

145231031250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516415 (or 516387 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 145231031250 its reverse (52130132541), we get a palindrome (197361163791).

The spelling of 145231031250 in words is "one hundred forty-five billion, two hundred thirty-one million, thirty-one thousand, two hundred fifty".