124742707 has 4 divisors (see below), whose sum is σ = 125141560. Its totient is φ = 124343856.

The previous prime is 124742701. The next prime is 124742711. The reversal of 124742707 is 707247421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707247421 = 79 ⋅8952499.

It is a cyclic number.

It is not a de Polignac number, because 124742707 - 2²³ = 116354099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124742701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198957 + ... + 199582.

It is an arithmetic number, because the mean of its divisors is an integer number (31285390).

Almost surely, 2^124742707 is an apocalyptic number.

124742707 is a deficient number, since it is larger than the sum of its proper divisors (398853).

124742707 is an equidigital number, since it uses as much as digits as its factorization.

124742707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398852.

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 124742707 is about 11168.8274675545. The cubic root of 124742707 is about 499.6567070205.

The spelling of 124742707 in words is "one hundred twenty-four million, seven hundred forty-two thousand, seven hundred seven".