602125021 has 4 divisors (see below), whose sum is σ = 602189500. Its totient is φ = 602060544.

The previous prime is 602125009. The next prime is 602125061. The reversal of 602125021 is 120521206.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 292752100 + 309372921 = 17110^2 + 17589^2 .

It is a cyclic number.

It is not a de Polignac number, because 602125021 - 2¹¹ = 602122973 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 602125021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (602125061) 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, 15246 + ... + 37903.

It is an arithmetic number, because the mean of its divisors is an integer number (150547375).

Almost surely, 2^602125021 is an apocalyptic number.

It is an amenable number.

602125021 is a deficient number, since it is larger than the sum of its proper divisors (64479).

602125021 is a wasteful number, since it uses less digits than its factorization.

602125021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64478.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 602125021 is about 24538.2358982874. The cubic root of 602125021 is about 844.4272210431.

Adding to 602125021 its reverse (120521206), we get a palindrome (722646227).

The spelling of 602125021 in words is "six hundred two million, one hundred twenty-five thousand, twenty-one".