601213133 has 6 divisors (see below), whose sum is σ = 611234442. Its totient is φ = 591353520.

The previous prime is 601213087. The next prime is 601213187. The reversal of 601213133 is 331312106.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9653449 + 591559684 = 3107^2 + 24322^2 .

It is not a de Polignac number, because 601213133 - 2¹⁶ = 601147597 is a prime.

It is a super-2 number, since 2×601213133² = 722914462583351378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601213433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77066 + ... + 84507.

It is an arithmetic number, because the mean of its divisors is an integer number (101872407).

Almost surely, 2^601213133 is an apocalyptic number.

It is an amenable number.

601213133 is a deficient number, since it is larger than the sum of its proper divisors (10021309).

601213133 is an equidigital number, since it uses as much as digits as its factorization.

601213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161695 (or 161634 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 601213133 is about 24519.6478971457. The cubic root of 601213133 is about 844.0007248446. Note that the first 3 decimals are identical.

Adding to 601213133 its reverse (331312106), we get a palindrome (932525239).

The spelling of 601213133 in words is "six hundred one million, two hundred thirteen thousand, one hundred thirty-three".