145353305 has 4 divisors (see below), whose sum is σ = 174423972. Its totient is φ = 116282640.

The previous prime is 145353253. The next prime is 145353311. The reversal of 145353305 is 503353541.

145353305 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.

It can be written as a sum of positive squares in 2 ways, for example, as 29855296 + 115498009 = 5464^2 + 10747^2 .

It is not a de Polignac number, because 145353305 - 2¹⁰ = 145352281 is a prime.

It is a super-2 number, since 2×145353305² = 42255166548846050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14535326 + ... + 14535335.

It is an arithmetic number, because the mean of its divisors is an integer number (43605993).

Almost surely, 2^145353305 is an apocalyptic number.

It is an amenable number.

145353305 is a deficient number, since it is larger than the sum of its proper divisors (29070667).

145353305 is an equidigital number, since it uses as much as digits as its factorization.

145353305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29070666.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 145353305 is about 12056.2558449960. The cubic root of 145353305 is about 525.7851351503.

The spelling of 145353305 in words is "one hundred forty-five million, three hundred fifty-three thousand, three hundred five".