4521401 has 8 divisors (see below), whose sum is σ = 4620264. Its totient is φ = 4423680.

The previous prime is 4521389. The next prime is 4521403. The reversal of 4521401 is 1041254.

It can be written as a sum of positive squares in 4 ways, for example, as 2725801 + 1795600 = 1651^2 + 1340^2 .

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-4521401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4521401.

It is not an unprimeable number, because it can be changed into a prime (4521403) 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, 17465 + ... + 17721.

It is an arithmetic number, because the mean of its divisors is an integer number (577533).

Almost surely, 2^4521401 is an apocalyptic number.

It is an amenable number.

4521401 is a deficient number, since it is larger than the sum of its proper divisors (98863).

4521401 is a wasteful number, since it uses less digits than its factorization.

4521401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 4521401 is about 2126.3586245034. The cubic root of 4521401 is about 165.3576691798.

Adding to 4521401 its reverse (1041254), we get a palindrome (5562655).

The spelling of 4521401 in words is "four million, five hundred twenty-one thousand, four hundred one".