124572452021 has 8 divisors (see below), whose sum is σ = 125396026680. Its totient is φ = 123750067392.

The previous prime is 124572452009. The next prime is 124572452029. The reversal of 124572452021 is 120254275421.

It can be written as a sum of positive squares in 4 ways, for example, as 51624384100 + 72948067921 = 227210^2 + 270089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124572452021 - 2¹⁰ = 124572450997 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 (124572452029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86966 + ... + 506663.

It is an arithmetic number, because the mean of its divisors is an integer number (15674503335).

Almost surely, 2^124572452021 is an apocalyptic number.

It is an amenable number.

124572452021 is a deficient number, since it is larger than the sum of its proper divisors (823574659).

124572452021 is a wasteful number, since it uses less digits than its factorization.

124572452021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595015.

The product of its (nonzero) digits is 44800, while the sum is 35.

The spelling of 124572452021 in words is "one hundred twenty-four billion, five hundred seventy-two million, four hundred fifty-two thousand, twenty-one".