4521961 has 8 divisors (see below), whose sum is σ = 4739904. Its totient is φ = 4305840.

The previous prime is 4521929. The next prime is 4521971. The reversal of 4521961 is 1691254.

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 4521961 - 2⁵ = 4521929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4521971) 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, 9450 + ... + 9916.

It is an arithmetic number, because the mean of its divisors is an integer number (592488).

Almost surely, 2^4521961 is an apocalyptic number.

It is an amenable number.

4521961 is a deficient number, since it is larger than the sum of its proper divisors (217943).

4521961 is a wasteful number, since it uses less digits than its factorization.

4521961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911.

The product of its digits is 2160, while the sum is 28.

The square root of 4521961 is about 2126.4903009419. The cubic root of 4521961 is about 165.3644957122.

The spelling of 4521961 in words is "four million, five hundred twenty-one thousand, nine hundred sixty-one".