4125621 has 8 divisors (see below), whose sum is σ = 5523264. Its totient is φ = 2739200.

The previous prime is 4125619. The next prime is 4125623. The reversal of 4125621 is 1265214.

It is an interprime number because it is at equal distance from previous prime (4125619) and next prime (4125623).

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 4125621 - 2¹ = 4125619 is a prime.

4125621 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4125623) 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, 1905 + ... + 3446.

It is an arithmetic number, because the mean of its divisors is an integer number (690408).

Almost surely, 2^4125621 is an apocalyptic number.

It is an amenable number.

4125621 is a deficient number, since it is larger than the sum of its proper divisors (1397643).

4125621 is a wasteful number, since it uses less digits than its factorization.

4125621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611.

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

The square root of 4125621 is about 2031.1624750374. The cubic root of 4125621 is about 160.3847640912.

The spelling of 4125621 in words is "four million, one hundred twenty-five thousand, six hundred twenty-one".