4125420581 has 8 divisors (see below), whose sum is σ = 4384710720. Its totient is φ = 3870346752.

The previous prime is 4125420577. The next prime is 4125420587. The reversal of 4125420581 is 1850245214.

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 4125420581 - 2² = 4125420577 is a prime.

It is a super-2 number, since 2×4125420581² = 34038189940276755122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4125420587) 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, 1052060 + ... + 1055973.

It is an arithmetic number, because the mean of its divisors is an integer number (548088840).

Almost surely, 2^4125420581 is an apocalyptic number.

It is an amenable number.

4125420581 is a deficient number, since it is larger than the sum of its proper divisors (259290139).

4125420581 is a wasteful number, since it uses less digits than its factorization.

4125420581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108155.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 4125420581 is about 64229.4370285152. The cubic root of 4125420581 is about 1603.8216693272.

Adding to 4125420581 its reverse (1850245214), we get a palindrome (5975665795).

The spelling of 4125420581 in words is "four billion, one hundred twenty-five million, four hundred twenty thousand, five hundred eighty-one".