124717249 has 4 divisors (see below), whose sum is σ = 124936240. Its totient is φ = 124498260.

The previous prime is 124717231. The next prime is 124717267. The reversal of 124717249 is 942717421.

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 an interprime number because it is at equal distance from previous prime (124717231) and next prime (124717267).

It is a cyclic number.

It is not a de Polignac number, because 124717249 - 2¹⁵ = 124684481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124717279) 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 3 ways as a sum of consecutive naturals, for example, 108639 + ... + 109780.

It is an arithmetic number, because the mean of its divisors is an integer number (31234060).

Almost surely, 2^124717249 is an apocalyptic number.

It is an amenable number.

124717249 is a deficient number, since it is larger than the sum of its proper divisors (218991).

124717249 is an equidigital number, since it uses as much as digits as its factorization.

124717249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218990.

The product of its digits is 28224, while the sum is 37.

The square root of 124717249 is about 11167.6877194879. The cubic root of 124717249 is about 499.6227140489.

It can be divided in two parts, 1247 and 17249, that added together give a square (18496 = 136²).

The spelling of 124717249 in words is "one hundred twenty-four million, seven hundred seventeen thousand, two hundred forty-nine".