145642127 has 4 divisors (see below), whose sum is σ = 149194416. Its totient is φ = 142089840.

The previous prime is 145642033. The next prime is 145642139. The reversal of 145642127 is 721246541.

145642127 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, and also an emirpimes, since its reverse is a distinct semiprime: 721246541 = 349 ⋅2066609.

It is a cyclic number.

It is not a de Polignac number, because 145642127 - 2⁸ = 145641871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145642093 and 145642102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145642327) 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, 1776083 + ... + 1776164.

It is an arithmetic number, because the mean of its divisors is an integer number (37298604).

Almost surely, 2^145642127 is an apocalyptic number.

145642127 is a deficient number, since it is larger than the sum of its proper divisors (3552289).

145642127 is an equidigital number, since it uses as much as digits as its factorization.

145642127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552288.

The product of its digits is 13440, while the sum is 32.

The square root of 145642127 is about 12068.2279975148. The cubic root of 145642127 is about 526.1331557718.

Adding to 145642127 its reverse (721246541), we get a palindrome (866888668).

The spelling of 145642127 in words is "one hundred forty-five million, six hundred forty-two thousand, one hundred twenty-seven".