117142825 has 6 divisors (see below), whose sum is σ = 145257134. Its totient is φ = 93714240.

The previous prime is 117142813. The next prime is 117142849. The reversal of 117142825 is 528241711.

It can be written as a sum of positive squares in 3 ways, for example, as 6135529 + 111007296 = 2477^2 + 10536^2 .

It is not a de Polignac number, because 117142825 - 2¹⁷ = 117011753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2342832 + ... + 2342881.

Almost surely, 2^117142825 is an apocalyptic number.

It is an amenable number.

117142825 is a deficient number, since it is larger than the sum of its proper divisors (28114309).

117142825 is an equidigital number, since it uses as much as digits as its factorization.

117142825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685723 (or 4685718 counting only the distinct ones).

The product of its digits is 4480, while the sum is 31.

The square root of 117142825 is about 10823.2539007454. The cubic root of 117142825 is about 489.2962617446.

The spelling of 117142825 in words is "one hundred seventeen million, one hundred forty-two thousand, eight hundred twenty-five".