145303253 has 16 divisors (see below), whose sum is σ = 154094400. Its totient is φ = 136805760.

The previous prime is 145303229. The next prime is 145303261. The reversal of 145303253 is 352303541.

It is not a de Polignac number, because 145303253 - 2⁶ = 145303189 is a prime.

It is a super-2 number, since 2×145303253² = 42226070664764018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145303283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278633 + ... + 279153.

It is an arithmetic number, because the mean of its divisors is an integer number (9630900).

Almost surely, 2^145303253 is an apocalyptic number.

It is an amenable number.

145303253 is a deficient number, since it is larger than the sum of its proper divisors (8791147).

145303253 is a wasteful number, since it uses less digits than its factorization.

145303253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 145303253 is about 12054.1798974464. The cubic root of 145303253 is about 525.7247773464.

Adding to 145303253 its reverse (352303541), we get a palindrome (497606794).

The spelling of 145303253 in words is "one hundred forty-five million, three hundred three thousand, two hundred fifty-three".