145595505 has 32 divisors (see below), whose sum is σ = 258940800. Its totient is φ = 69255680.

The previous prime is 145595501. The next prime is 145595579. The reversal of 145595505 is 505595541.

145595505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145595505 - 2² = 145595501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145595501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421 + ... + 17069.

It is an arithmetic number, because the mean of its divisors is an integer number (8091900).

Almost surely, 2^145595505 is an apocalyptic number.

145595505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145595505 is a deficient number, since it is larger than the sum of its proper divisors (113345295).

145595505 is a wasteful number, since it uses less digits than its factorization.

145595505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16721.

The product of its (nonzero) digits is 112500, while the sum is 39.

The square root of 145595505 is about 12066.2962420123. The cubic root of 145595505 is about 526.0770090182.

The spelling of 145595505 in words is "one hundred forty-five million, five hundred ninety-five thousand, five hundred five".