601013531 has 2 divisors, whose sum is σ = 601013532. Its totient is φ = 601013530.

The previous prime is 601013527. The next prime is 601013579. The reversal of 601013531 is 135310106.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 601013531 - 2² = 601013527 is a prime.

It is a super-2 number, since 2×601013531² = 722434528890175922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (601013521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300506765 + 300506766.

It is an arithmetic number, because the mean of its divisors is an integer number (300506766).

Almost surely, 2^601013531 is an apocalyptic number.

601013531 is a deficient number, since it is larger than the sum of its proper divisors (1).

601013531 is an equidigital number, since it uses as much as digits as its factorization.

601013531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 601013531 is about 24515.5773132105. The cubic root of 601013531 is about 843.9073121150.

Adding to 601013531 its reverse (135310106), we get a palindrome (736323637).

The spelling of 601013531 in words is "six hundred one million, thirteen thousand, five hundred thirty-one".