124535521 has 16 divisors (see below), whose sum is σ = 138700800. Its totient is φ = 110869200.

The previous prime is 124535507. The next prime is 124535527. The reversal of 124535521 is 125535421.

It is a cyclic number.

It is not a de Polignac number, because 124535521 - 2⁷ = 124535393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124535521.

It is not an unprimeable number, because it can be changed into a prime (124535527) 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 15 ways as a sum of consecutive naturals, for example, 120276 + ... + 121306.

It is an arithmetic number, because the mean of its divisors is an integer number (8668800).

Almost surely, 2^124535521 is an apocalyptic number.

124535521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124535521 is a deficient number, since it is larger than the sum of its proper divisors (14165279).

124535521 is a wasteful number, since it uses less digits than its factorization.

124535521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260.

The product of its digits is 6000, while the sum is 28.

The square root of 124535521 is about 11159.5484227634. The cubic root of 124535521 is about 499.3799260010.

The spelling of 124535521 in words is "one hundred twenty-four million, five hundred thirty-five thousand, five hundred twenty-one".