69120539 has 2 divisors, whose sum is σ = 69120540. Its totient is φ = 69120538.

The previous prime is 69120529. The next prime is 69120563. The reversal of 69120539 is 93502196.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69120539 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 69120499 and 69120508.

It is not a weakly prime, because it can be changed into another prime (69120509) 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, 34560269 + 34560270.

It is an arithmetic number, because the mean of its divisors is an integer number (34560270).

Almost surely, 2^69120539 is an apocalyptic number.

69120539 is a deficient number, since it is larger than the sum of its proper divisors (1).

69120539 is an equidigital number, since it uses as much as digits as its factorization.

69120539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 69120539 is about 8313.8762920794. The cubic root of 69120539 is about 410.3952939555.

The spelling of 69120539 in words is "sixty-nine million, one hundred twenty thousand, five hundred thirty-nine".