123249049 has 8 divisors (see below), whose sum is σ = 153661248. Its totient is φ = 96038160.

The previous prime is 123249041. The next prime is 123249083. The reversal of 123249049 is 940942321.

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 123249049 - 2³ = 123249041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123249041) 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 7 ways as a sum of consecutive naturals, for example, 800242 + ... + 800395.

It is an arithmetic number, because the mean of its divisors is an integer number (19207656).

Almost surely, 2^123249049 is an apocalyptic number.

It is an amenable number.

123249049 is a deficient number, since it is larger than the sum of its proper divisors (30412199).

123249049 is a wasteful number, since it uses less digits than its factorization.

123249049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600655.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 123249049 is about 11101.7588246187. The cubic root of 123249049 is about 497.6544123100.

The spelling of 123249049 in words is "one hundred twenty-three million, two hundred forty-nine thousand, forty-nine".