4125132021 has 8 divisors (see below), whose sum is σ = 5577643584. Its totient is φ = 2711354240.

The previous prime is 4125132007. The next prime is 4125132023. The reversal of 4125132021 is 1202315214.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4125132021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4125132023) 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 7 ways as a sum of consecutive naturals, for example, 9683196 + ... + 9683621.

It is an arithmetic number, because the mean of its divisors is an integer number (697205448).

Almost surely, 2^4125132021 is an apocalyptic number.

It is an amenable number.

4125132021 is a deficient number, since it is larger than the sum of its proper divisors (1452511563).

4125132021 is a wasteful number, since it uses less digits than its factorization.

4125132021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19366891.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 4125132021 is about 64227.1906671933. The cubic root of 4125132021 is about 1603.7842743867.

Adding to 4125132021 its reverse (1202315214), we get a palindrome (5327447235).

The spelling of 4125132021 in words is "four billion, one hundred twenty-five million, one hundred thirty-two thousand, twenty-one".