145135 has 4 divisors (see below), whose sum is σ = 174168. Its totient is φ = 116104.

The previous prime is 145133. The next prime is 145139. The reversal of 145135 is 531541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531541 = 29 ⋅18329.

It is a cyclic number.

It is not a de Polignac number, because 145135 - 2¹ = 145133 is a prime.

It is a Duffinian 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 (145133) 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, 14509 + ... + 14518.

It is an arithmetic number, because the mean of its divisors is an integer number (43542).

2¹⁴⁵¹³⁵ is an apocalyptic number.

145135 is a deficient number, since it is larger than the sum of its proper divisors (29033).

145135 is an equidigital number, since it uses as much as digits as its factorization.

145135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29032.

The product of its digits is 300, while the sum is 19.

The square root of 145135 is about 380.9658777371. The cubic root of 145135 is about 52.5521779058.

Adding to 145135 its reverse (531541), we get a palindrome (676676).

The spelling of 145135 in words is "one hundred forty-five thousand, one hundred thirty-five".