124942091 has 4 divisors (see below), whose sum is σ = 126990384. Its totient is φ = 122893800.

The previous prime is 124942087. The next prime is 124942109. The reversal of 124942091 is 190249421.

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 124942091 - 2² = 124942087 is a prime.

It is a super-2 number, since 2×124942091² = 31221052206904562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124942021) 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, 1024055 + ... + 1024176.

It is an arithmetic number, because the mean of its divisors is an integer number (31747596).

Almost surely, 2^124942091 is an apocalyptic number.

124942091 is a deficient number, since it is larger than the sum of its proper divisors (2048293).

124942091 is an equidigital number, since it uses as much as digits as its factorization.

124942091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048292.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 124942091 is about 11177.7498182774. The cubic root of 124942091 is about 499.9227760735.

The spelling of 124942091 in words is "one hundred twenty-four million, nine hundred forty-two thousand, ninety-one".