4521002 has 4 divisors (see below), whose sum is σ = 6781506. Its totient is φ = 2260500.

The previous prime is 4521001. The next prime is 4521037. The reversal of 4521002 is 2001254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2859481 + 1661521 = 1691^2 + 1289^2 .

It is not an unprimeable number, because it can be changed into a prime (4521001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130249 + ... + 1130252.

Almost surely, 2^4521002 is an apocalyptic number.

4521002 is a deficient number, since it is larger than the sum of its proper divisors (2260504).

4521002 is a wasteful number, since it uses less digits than its factorization.

4521002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260503.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 4521002 is about 2126.2648000661. The cubic root of 4521002 is about 165.3528049315.

Adding to 4521002 its reverse (2001254), we get a palindrome (6522256).

The spelling of 4521002 in words is "four million, five hundred twenty-one thousand, two".