124085649 has 4 divisors (see below), whose sum is σ = 165447536. Its totient is φ = 82723764.

The previous prime is 124085627. The next prime is 124085657. The reversal of 124085649 is 946580421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 124085649 - 2⁵ = 124085617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124085699) 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, 20680939 + ... + 20680944.

It is an arithmetic number, because the mean of its divisors is an integer number (41361884).

Almost surely, 2^124085649 is an apocalyptic number.

It is an amenable number.

124085649 is a deficient number, since it is larger than the sum of its proper divisors (41361887).

124085649 is an equidigital number, since it uses as much as digits as its factorization.

124085649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41361886.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 124085649 is about 11139.3738154350. The cubic root of 124085649 is about 498.7778806155. Note that the first 3 decimals are identical.

The spelling of 124085649 in words is "one hundred twenty-four million, eighty-five thousand, six hundred forty-nine".