69042041 has 4 divisors (see below), whose sum is σ = 69132132. Its totient is φ = 68951952.

The previous prime is 69042031. The next prime is 69042059. The reversal of 69042041 is 14024096.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14592400 + 54449641 = 3820^2 + 7379^2 .

It is a cyclic number.

It is not a de Polignac number, because 69042041 - 2¹⁰ = 69041017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69042041.

It is not an unprimeable number, because it can be changed into a prime (69042031) 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 in 3 ways as a sum of consecutive naturals, for example, 43886 + ... + 45431.

It is an arithmetic number, because the mean of its divisors is an integer number (17283033).

Almost surely, 2^69042041 is an apocalyptic number.

It is an amenable number.

69042041 is a deficient number, since it is larger than the sum of its proper divisors (90091).

69042041 is an equidigital number, since it uses as much as digits as its factorization.

69042041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90090.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 69042041 is about 8309.1540483975. The cubic root of 69042041 is about 410.2398774748.

The spelling of 69042041 in words is "sixty-nine million, forty-two thousand, forty-one".