124312501 has 4 divisors (see below), whose sum is σ = 124704972. Its totient is φ = 123920032.

The previous prime is 124312499. The next prime is 124312523. The reversal of 124312501 is 105213421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51466276 + 72846225 = 7174^2 + 8535^2 .

It is a cyclic number.

It is not a de Polignac number, because 124312501 - 2¹ = 124312499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124312301) 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, 195760 + ... + 196393.

It is an arithmetic number, because the mean of its divisors is an integer number (31176243).

Almost surely, 2^124312501 is an apocalyptic number.

It is an amenable number.

124312501 is a deficient number, since it is larger than the sum of its proper divisors (392471).

124312501 is an equidigital number, since it uses as much as digits as its factorization.

124312501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392470.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 124312501 is about 11149.5516053337. The cubic root of 124312501 is about 499.0816489621.

Adding to 124312501 its reverse (105213421), we get a palindrome (229525922).

The spelling of 124312501 in words is "one hundred twenty-four million, three hundred twelve thousand, five hundred one".