147523 has 4 divisors (see below), whose sum is σ = 152640. Its totient is φ = 142408.

The previous prime is 147517. The next prime is 147541. The reversal of 147523 is 325741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325741 = 13 ⋅25057.

It is a cyclic number.

It is not a de Polignac number, because 147523 - 2⁹ = 147011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147494 and 147503.

It is not an unprimeable number, because it can be changed into a prime (147503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2515 + ... + 2572.

It is an arithmetic number, because the mean of its divisors is an integer number (38160).

2¹⁴⁷⁵²³ is an apocalyptic number.

147523 is a deficient number, since it is larger than the sum of its proper divisors (5117).

147523 is an equidigital number, since it uses as much as digits as its factorization.

147523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116.

The product of its digits is 840, while the sum is 22.

The square root of 147523 is about 384.0872296758. The cubic root of 147523 is about 52.8388364029.

It can be divided in two parts, 1 and 47523, that added together give a square (47524 = 218²).

The spelling of 147523 in words is "one hundred forty-seven thousand, five hundred twenty-three".