145325253 has 4 divisors (see below), whose sum is σ = 193767008. Its totient is φ = 96883500.

The previous prime is 145325249. The next prime is 145325287. The reversal of 145325253 is 352523541.

145325253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 145325253 - 2² = 145325249 is a prime.

It is a super-2 number, since 2×145325253² = 42238858319028018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145325253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145325203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24220873 + ... + 24220878.

It is an arithmetic number, because the mean of its divisors is an integer number (48441752).

Almost surely, 2^145325253 is an apocalyptic number.

It is an amenable number.

145325253 is a deficient number, since it is larger than the sum of its proper divisors (48441755).

145325253 is an equidigital number, since it uses as much as digits as its factorization.

145325253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48441754.

The product of its digits is 18000, while the sum is 30.

The square root of 145325253 is about 12055.0924094343. The cubic root of 145325253 is about 525.7513088961.

Adding to 145325253 its reverse (352523541), we get a palindrome (497848794).

The spelling of 145325253 in words is "one hundred forty-five million, three hundred twenty-five thousand, two hundred fifty-three".