145523263 has 4 divisors (see below), whose sum is σ = 147695320. Its totient is φ = 143351208.

The previous prime is 145523251. The next prime is 145523267. The reversal of 145523263 is 362325541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362325541 = 5167 ⋅70123.

It is a cyclic number.

It is not a de Polignac number, because 145523263 - 2²¹ = 143426111 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 (145523267) 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 3 ways as a sum of consecutive naturals, for example, 1085928 + ... + 1086061.

It is an arithmetic number, because the mean of its divisors is an integer number (36923830).

Almost surely, 2^145523263 is an apocalyptic number.

145523263 is a deficient number, since it is larger than the sum of its proper divisors (2172057).

145523263 is an equidigital number, since it uses as much as digits as its factorization.

145523263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172056.

The product of its digits is 21600, while the sum is 31.

The square root of 145523263 is about 12063.3023256486. The cubic root of 145523263 is about 525.9899844845.

The spelling of 145523263 in words is "one hundred forty-five million, five hundred twenty-three thousand, two hundred sixty-three".