145303265 has 4 divisors (see below), whose sum is σ = 174363924. Its totient is φ = 116242608.

The previous prime is 145303261. The next prime is 145303283. The reversal of 145303265 is 562303541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562303541 = 37 ⋅15197393.

It can be written as a sum of positive squares in 2 ways, for example, as 57168721 + 88134544 = 7561^2 + 9388^2 .

It is a cyclic number.

It is not a de Polignac number, because 145303265 - 2² = 145303261 is a prime.

It is a super-2 number, since 2×145303265² = 42226077639320450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145303261) 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, 14530322 + ... + 14530331.

It is an arithmetic number, because the mean of its divisors is an integer number (43590981).

Almost surely, 2^145303265 is an apocalyptic number.

It is an amenable number.

145303265 is a deficient number, since it is larger than the sum of its proper divisors (29060659).

145303265 is an equidigital number, since it uses as much as digits as its factorization.

145303265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29060658.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 145303265 is about 12054.1803951990. The cubic root of 145303265 is about 525.7247918189.

The spelling of 145303265 in words is "one hundred forty-five million, three hundred three thousand, two hundred sixty-five".