69142705 has 8 divisors (see below), whose sum is σ = 83529000. Its totient is φ = 54942336.

The previous prime is 69142693. The next prime is 69142721. The reversal of 69142705 is 50724196.

It can be written as a sum of positive squares in 4 ways, for example, as 6906384 + 62236321 = 2628^2 + 7889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69142705 - 2⁵ = 69142673 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45660 + ... + 47149.

It is an arithmetic number, because the mean of its divisors is an integer number (10441125).

Almost surely, 2^69142705 is an apocalyptic number.

It is an amenable number.

69142705 is a deficient number, since it is larger than the sum of its proper divisors (14386295).

69142705 is a wasteful number, since it uses less digits than its factorization.

69142705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92963.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 69142705 is about 8315.2092577397. The cubic root of 69142705 is about 410.4391586300.

The spelling of 69142705 in words is "sixty-nine million, one hundred forty-two thousand, seven hundred five".