145605319 has 6 divisors (see below), whose sum is σ = 146342256. Its totient is φ = 144870120.

The previous prime is 145605311. The next prime is 145605329. The reversal of 145605319 is 913506541.

145605319 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 145605319 - 2³ = 145605311 is a prime.

It is a super-2 number, since 2×145605319² = 42401817842183522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145605311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198277 + ... + 199009.

It is an arithmetic number, because the mean of its divisors is an integer number (24390376).

Almost surely, 2^145605319 is an apocalyptic number.

145605319 is a deficient number, since it is larger than the sum of its proper divisors (736937).

145605319 is an frugal number, since it uses more digits than its factorization.

145605319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 145605319 is about 12066.7029051021. The cubic root of 145605319 is about 526.0888289888.

It can be divided in two parts, 145605 and 319, that added together give a square (145924 = 382²).

The spelling of 145605319 in words is "one hundred forty-five million, six hundred five thousand, three hundred nineteen".