124704249 has 4 divisors (see below), whose sum is σ = 166272336. Its totient is φ = 83136164.

The previous prime is 124704241. The next prime is 124704253. The reversal of 124704249 is 942407421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 942407421 = 3 ⋅314135807.

It is a cyclic number.

It is not a de Polignac number, because 124704249 - 2³ = 124704241 is a prime.

It is a super-2 number, since 2×124704249² = 31102299437308002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124704241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20784039 + ... + 20784044.

It is an arithmetic number, because the mean of its divisors is an integer number (41568084).

Almost surely, 2^124704249 is an apocalyptic number.

It is an amenable number.

124704249 is a deficient number, since it is larger than the sum of its proper divisors (41568087).

124704249 is an equidigital number, since it uses as much as digits as its factorization.

124704249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41568086.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 124704249 is about 11167.1056679876. The cubic root of 124704249 is about 499.6053539242.

The spelling of 124704249 in words is "one hundred twenty-four million, seven hundred four thousand, two hundred forty-nine".