145279 has 4 divisors (see below), whose sum is σ = 146520. Its totient is φ = 144040.

The previous prime is 145267. The next prime is 145283. The reversal of 145279 is 972541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 972541 = 281 ⋅3461.

It is a cyclic number.

It is not a de Polignac number, because 145279 - 2¹³ = 137087 is a prime.

It is a super-2 number, since 2×145279² = 42211975682, which contains 22 as substring.

It is a Duffinian number.

145279 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424 + ... + 685.

It is an arithmetic number, because the mean of its divisors is an integer number (36630).

2¹⁴⁵²⁷⁹ is an apocalyptic number.

145279 is a deficient number, since it is larger than the sum of its proper divisors (1241).

145279 is a wasteful number, since it uses less digits than its factorization.

145279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240.

The product of its digits is 2520, while the sum is 28.

The square root of 145279 is about 381.1548241857. The cubic root of 145279 is about 52.5695525621.

It can be divided in two parts, 145 and 279, that added together give a palindrome (424).

The spelling of 145279 in words is "one hundred forty-five thousand, two hundred seventy-nine".