9404142061 has 2 divisors, whose sum is σ = 9404142062. Its totient is φ = 9404142060.

The previous prime is 9404142031. The next prime is 9404142071. The reversal of 9404142061 is 1602414049.

9404142061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5462688100 + 3941453961 = 73910^2 + 62781^2 .

It is a cyclic number.

It is not a de Polignac number, because 9404142061 - 2²⁷ = 9269924333 is a prime.

It is a super-3 number, since 3×9404142061³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9404142031) 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, 4702071030 + 4702071031.

It is an arithmetic number, because the mean of its divisors is an integer number (4702071031).

Almost surely, 2^9404142061 is an apocalyptic number.

It is an amenable number.

9404142061 is a deficient number, since it is larger than the sum of its proper divisors (1).

9404142061 is an equidigital number, since it uses as much as digits as its factorization.

9404142061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 9404142061 is about 96974.9558442797. The cubic root of 9404142061 is about 2110.7642358644.

The spelling of 9404142061 in words is "nine billion, four hundred four million, one hundred forty-two thousand, sixty-one".