124248091 has 4 divisors (see below), whose sum is σ = 135543384. Its totient is φ = 112952800.

The previous prime is 124248077. The next prime is 124248101. The reversal of 124248091 is 190842421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124248091 - 2²¹ = 122150939 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124248191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5647630 + ... + 5647651.

It is an arithmetic number, because the mean of its divisors is an integer number (33885846).

Almost surely, 2^124248091 is an apocalyptic number.

124248091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

124248091 is a deficient number, since it is larger than the sum of its proper divisors (11295293).

124248091 is a wasteful number, since it uses less digits than its factorization.

124248091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11295292.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 124248091 is about 11146.6627741221. The cubic root of 124248091 is about 498.9954377276.

The spelling of 124248091 in words is "one hundred twenty-four million, two hundred forty-eight thousand, ninety-one".