122613523 has 4 divisors (see below), whose sum is σ = 125927440. Its totient is φ = 119299608.

The previous prime is 122613509. The next prime is 122613527. The reversal of 122613523 is 325316221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325316221 = 1307 ⋅248903.

It is a cyclic number.

It is not a de Polignac number, because 122613523 - 2²¹ = 120516371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122613527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1656903 + ... + 1656976.

It is an arithmetic number, because the mean of its divisors is an integer number (31481860).

Almost surely, 2^122613523 is an apocalyptic number.

122613523 is a deficient number, since it is larger than the sum of its proper divisors (3313917).

122613523 is an equidigital number, since it uses as much as digits as its factorization.

122613523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313916.

The product of its digits is 2160, while the sum is 25.

The square root of 122613523 is about 11073.0990693663. The cubic root of 122613523 is about 496.7975632550.

Adding to 122613523 its reverse (325316221), we get a palindrome (447929744).

The spelling of 122613523 in words is "one hundred twenty-two million, six hundred thirteen thousand, five hundred twenty-three".