4042135997 has 2 divisors, whose sum is σ = 4042135998. Its totient is φ = 4042135996.

The previous prime is 4042135991. The next prime is 4042136023. The reversal of 4042135997 is 7995312404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3111519961 + 930616036 = 55781^2 + 30506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042135997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4042135991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021067998 + 2021067999.

It is an arithmetic number, because the mean of its divisors is an integer number (2021067999).

Almost surely, 2^4042135997 is an apocalyptic number.

It is an amenable number.

4042135997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042135997 is an equidigital number, since it uses as much as digits as its factorization.

4042135997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 4042135997 is about 63577.7948422246. The cubic root of 4042135997 is about 1592.9554877410.

The spelling of 4042135997 in words is "four billion, forty-two million, one hundred thirty-five thousand, nine hundred ninety-seven".