124091521 has 8 divisors (see below), whose sum is σ = 125697600. Its totient is φ = 122496048.

The previous prime is 124091467. The next prime is 124091533. The reversal of 124091521 is 125190421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124091521 - 2¹¹ = 124089473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124091321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22390 + ... + 27376.

It is an arithmetic number, because the mean of its divisors is an integer number (15712200).

Almost surely, 2^124091521 is an apocalyptic number.

It is an amenable number.

124091521 is a deficient number, since it is larger than the sum of its proper divisors (1606079).

124091521 is a wasteful number, since it uses less digits than its factorization.

124091521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5303.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 124091521 is about 11139.6373818900. The cubic root of 124091521 is about 498.7857482391.

The spelling of 124091521 in words is "one hundred twenty-four million, ninety-one thousand, five hundred twenty-one".