124745091 has 4 divisors (see below), whose sum is σ = 166326792. Its totient is φ = 83163392.

The previous prime is 124745069. The next prime is 124745111. The reversal of 124745091 is 190547421.

It is a happy number.

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 124745091 - 2⁵ = 124745059 is a prime.

It is a super-2 number, since 2×124745091² = 31122675457196562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124745591) 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, 20790846 + ... + 20790851.

It is an arithmetic number, because the mean of its divisors is an integer number (41581698).

Almost surely, 2^124745091 is an apocalyptic number.

124745091 is a deficient number, since it is larger than the sum of its proper divisors (41581701).

124745091 is an equidigital number, since it uses as much as digits as its factorization.

124745091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41581700.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 124745091 is about 11168.9341926614. The cubic root of 124745091 is about 499.6598900362.

The spelling of 124745091 in words is "one hundred twenty-four million, seven hundred forty-five thousand, ninety-one".