145331125 has 8 divisors (see below), whose sum is σ = 181373400. Its totient is φ = 116264800.

The previous prime is 145331119. The next prime is 145331129. The reversal of 145331125 is 521133541.

It is a happy number.

145331125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10817521 + 134513604 = 3289^2 + 11598^2 .

It is not a de Polignac number, because 145331125 - 2⁹ = 145330613 is a prime.

It is a super-2 number, since 2×145331125² = 42242271787531250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 145331125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145331129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581200 + ... + 581449.

It is an arithmetic number, because the mean of its divisors is an integer number (22671675).

Almost surely, 2^145331125 is an apocalyptic number.

It is an amenable number.

145331125 is a deficient number, since it is larger than the sum of its proper divisors (36042275).

145331125 is an equidigital number, since it uses as much as digits as its factorization.

145331125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162664 (or 1162654 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 145331125 is about 12055.3359555012. The cubic root of 145331125 is about 525.7583899552.

Adding to 145331125 its reverse (521133541), we get a palindrome (666464666).

The spelling of 145331125 in words is "one hundred forty-five million, three hundred thirty-one thousand, one hundred twenty-five".