145605337 has 4 divisors (see below), whose sum is σ = 147047076. Its totient is φ = 144163600.

The previous prime is 145605331. The next prime is 145605347. The reversal of 145605337 is 733506541.

145605337 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 130325056 + 15280281 = 11416^2 + 3909^2 .

It is a cyclic number.

It is not a de Polignac number, because 145605337 - 2³ = 145605329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145605331) 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, 720718 + ... + 720919.

It is an arithmetic number, because the mean of its divisors is an integer number (36761769).

Almost surely, 2^145605337 is an apocalyptic number.

It is an amenable number.

145605337 is a deficient number, since it is larger than the sum of its proper divisors (1441739).

145605337 is a wasteful number, since it uses less digits than its factorization.

145605337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441738.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 145605337 is about 12066.7036509562. The cubic root of 145605337 is about 526.0888506675.

The spelling of 145605337 in words is "one hundred forty-five million, six hundred five thousand, three hundred thirty-seven".