602126381 has 2 divisors, whose sum is σ = 602126382. Its totient is φ = 602126380.

The previous prime is 602126311. The next prime is 602126429. The reversal of 602126381 is 183621206.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 507375625 + 94750756 = 22525^2 + 9734^2 .

It is a cyclic number.

It is not a de Polignac number, because 602126381 - 2²⁶ = 535017517 is a prime.

It is a super-2 number, since 2×602126381² = 725112357392314322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (602126311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301063190 + 301063191.

It is an arithmetic number, because the mean of its divisors is an integer number (301063191).

Almost surely, 2^602126381 is an apocalyptic number.

It is an amenable number.

602126381 is a deficient number, since it is larger than the sum of its proper divisors (1).

602126381 is an equidigital number, since it uses as much as digits as its factorization.

602126381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 602126381 is about 24538.2636101253. The cubic root of 602126381 is about 844.4278568026.

Adding to 602126381 its reverse (183621206), we get a palindrome (785747587).

The spelling of 602126381 in words is "six hundred two million, one hundred twenty-six thousand, three hundred eighty-one".