4521612 has 12 divisors (see below), whose sum is σ = 10550456. Its totient is φ = 1507200.

The previous prime is 4521611. The next prime is 4521617. The reversal of 4521612 is 2161254.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (4521611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188389 + ... + 188412.

Almost surely, 2^4521612 is an apocalyptic number.

It is an amenable number.

4521612 is an abundant number, since it is smaller than the sum of its proper divisors (6028844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4521612 is a wasteful number, since it uses less digits than its factorization.

4521612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376808 (or 376806 counting only the distinct ones).

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

The square root of 4521612 is about 2126.4082392617. The cubic root of 4521612 is about 165.3602413859.

Adding to 4521612 its reverse (2161254), we get a palindrome (6682866).

The spelling of 4521612 in words is "four million, five hundred twenty-one thousand, six hundred twelve".