145365065 has 4 divisors (see below), whose sum is σ = 174438084. Its totient is φ = 116292048.

The previous prime is 145365053. The next prime is 145365109. The reversal of 145365065 is 560563541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560563541 = 131 ⋅4279111.

It can be written as a sum of positive squares in 2 ways, for example, as 104366656 + 40998409 = 10216^2 + 6403^2 .

It is a cyclic number.

It is not a de Polignac number, because 145365065 - 2⁶ = 145365001 is a prime.

It is a super-2 number, since 2×145365065² = 42262004244908450, 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, 14536502 + ... + 14536511.

It is an arithmetic number, because the mean of its divisors is an integer number (43609521).

Almost surely, 2^145365065 is an apocalyptic number.

It is an amenable number.

145365065 is a deficient number, since it is larger than the sum of its proper divisors (29073019).

145365065 is an equidigital number, since it uses as much as digits as its factorization.

145365065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29073018.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 145365065 is about 12056.7435487365. The cubic root of 145365065 is about 525.7993145468.

The spelling of 145365065 in words is "one hundred forty-five million, three hundred sixty-five thousand, sixty-five".