145339 has 4 divisors (see below), whose sum is σ = 146880. Its totient is φ = 143800.

The previous prime is 145307. The next prime is 145349. The reversal of 145339 is 933541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145339 - 2⁵ = 145307 is a prime.

It is a super-2 number, since 2×145339² = 42246849842, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (145349) 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, 619 + ... + 820.

It is an arithmetic number, because the mean of its divisors is an integer number (36720).

2¹⁴⁵³³⁹ is an apocalyptic number.

145339 is a deficient number, since it is larger than the sum of its proper divisors (1541).

145339 is a wasteful number, since it uses less digits than its factorization.

145339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540.

The product of its digits is 1620, while the sum is 25.

The square root of 145339 is about 381.2335242342. The cubic root of 145339 is about 52.5767886137.

It can be divided in two parts, 145 and 339, that added together give a palindrome (484).

The spelling of 145339 in words is "one hundred forty-five thousand, three hundred thirty-nine".