124117649 has 4 divisors (see below), whose sum is σ = 124165860. Its totient is φ = 124069440.

The previous prime is 124117627. The next prime is 124117657. The reversal of 124117649 is 946711421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 946711421 = 293 ⋅3231097.

It can be written as a sum of positive squares in 2 ways, for example, as 57988225 + 66129424 = 7615^2 + 8132^2 .

It is a cyclic number.

It is not a de Polignac number, because 124117649 - 2¹⁶ = 124052113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124117349) 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, 20012 + ... + 25469.

It is an arithmetic number, because the mean of its divisors is an integer number (31041465).

Almost surely, 2^124117649 is an apocalyptic number.

It is an amenable number.

124117649 is a deficient number, since it is larger than the sum of its proper divisors (48211).

124117649 is an equidigital number, since it uses as much as digits as its factorization.

124117649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48210.

The product of its digits is 12096, while the sum is 35.

The square root of 124117649 is about 11140.8100692903. The cubic root of 124117649 is about 498.8207529393.

The spelling of 124117649 in words is "one hundred twenty-four million, one hundred seventeen thousand, six hundred forty-nine".