145319 has 4 divisors (see below), whose sum is σ = 150360. Its totient is φ = 140280.

The previous prime is 145307. The next prime is 145349. The reversal of 145319 is 913541.

It is a happy number.

145319 is nontrivially palindromic in base 11.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 913541 = 271 ⋅3371.

It is a cyclic number.

It is not a de Polignac number, because 145319 - 2⁴ = 145303 is a prime.

It is a super-2 number, since 2×145319² = 42235223522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145294 and 145303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2477 + ... + 2534.

It is an arithmetic number, because the mean of its divisors is an integer number (37590).

2¹⁴⁵³¹⁹ is an apocalyptic number.

145319 is a deficient number, since it is larger than the sum of its proper divisors (5041).

145319 is an equidigital number, since it uses as much as digits as its factorization.

145319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040.

The product of its digits is 540, while the sum is 23.

The square root of 145319 is about 381.2072926899. The cubic root of 145319 is about 52.5743768178.

It can be divided in two parts, 145 and 319, that added together give a palindrome (464).

The spelling of 145319 in words is "one hundred forty-five thousand, three hundred nineteen".