605142157 has 2 divisors, whose sum is σ = 605142158. Its totient is φ = 605142156.

The previous prime is 605142151. The next prime is 605142169. The reversal of 605142157 is 751241506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 604471396 + 670761 = 24586^2 + 819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605142157 is a prime.

It is a super-2 number, since 2×605142157² = 732394060357225298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605142151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302571078 + 302571079.

It is an arithmetic number, because the mean of its divisors is an integer number (302571079).

Almost surely, 2^605142157 is an apocalyptic number.

It is an amenable number.

605142157 is a deficient number, since it is larger than the sum of its proper divisors (1).

605142157 is an equidigital number, since it uses as much as digits as its factorization.

605142157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 605142157 is about 24599.6373347251. The cubic root of 605142157 is about 845.8352941453.

The spelling of 605142157 in words is "six hundred five million, one hundred forty-two thousand, one hundred fifty-seven".