124540417 has 4 divisors (see below), whose sum is σ = 125286336. Its totient is φ = 123794500.

The previous prime is 124540387. The next prime is 124540439. The reversal of 124540417 is 714045421.

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: 714045421 = 97 ⋅7361293.

It is a cyclic number.

It is not a de Polignac number, because 124540417 - 2⁷ = 124540289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124540447) 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, 372709 + ... + 373042.

It is an arithmetic number, because the mean of its divisors is an integer number (31321584).

Almost surely, 2^124540417 is an apocalyptic number.

It is an amenable number.

124540417 is a deficient number, since it is larger than the sum of its proper divisors (745919).

124540417 is an equidigital number, since it uses as much as digits as its factorization.

124540417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745918.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 124540417 is about 11159.7677843224. The cubic root of 124540417 is about 499.3864701368.

Adding to 124540417 its reverse (714045421), we get a palindrome (838585838).

It can be divided in two parts, 1245404 and 17, that added together give a palindrome (1245421).

The spelling of 124540417 in words is "one hundred twenty-four million, five hundred forty thousand, four hundred seventeen".