145563253 has 8 divisors (see below), whose sum is σ = 158890176. Its totient is φ = 132252000.

The previous prime is 145563247. The next prime is 145563293. The reversal of 145563253 is 352365541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145563253 - 2⁵ = 145563221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145563233) 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, 24528 + ... + 29878.

It is an arithmetic number, because the mean of its divisors is an integer number (19861272).

Almost surely, 2^145563253 is an apocalyptic number.

It is an amenable number.

145563253 is a deficient number, since it is larger than the sum of its proper divisors (13326923).

145563253 is a wasteful number, since it uses less digits than its factorization.

145563253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7835.

The product of its digits is 54000, while the sum is 34.

The square root of 145563253 is about 12064.9597181259. The cubic root of 145563253 is about 526.0381610042.

The spelling of 145563253 in words is "one hundred forty-five million, five hundred sixty-three thousand, two hundred fifty-three".