120747523 has 4 divisors (see below), whose sum is σ = 130035808. Its totient is φ = 111459240.

The previous prime is 120747509. The next prime is 120747551. The reversal of 120747523 is 325747021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325747021 = 113 ⋅2882717.

It is a cyclic number.

It is not a de Polignac number, because 120747523 - 2¹⁷ = 120616451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120747323) 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, 4644123 + ... + 4644148.

It is an arithmetic number, because the mean of its divisors is an integer number (32508952).

Almost surely, 2^120747523 is an apocalyptic number.

120747523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120747523 is a deficient number, since it is larger than the sum of its proper divisors (9288285).

120747523 is an equidigital number, since it uses as much as digits as its factorization.

120747523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9288284.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 120747523 is about 10988.5177799374. The cubic root of 120747523 is about 494.2644900864.

The spelling of 120747523 in words is "one hundred twenty million, seven hundred forty-seven thousand, five hundred twenty-three".