158845117 has 4 divisors (see below), whose sum is σ = 160250940. Its totient is φ = 157439296.

The previous prime is 158845103. The next prime is 158845121. The reversal of 158845117 is 711548851.

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 28451556 + 130393561 = 5334^2 + 11419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158845117 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 158845117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158845217) 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, 702742 + ... + 702967.

It is an arithmetic number, because the mean of its divisors is an integer number (40062735).

Almost surely, 2^158845117 is an apocalyptic number.

It is an amenable number.

158845117 is a deficient number, since it is larger than the sum of its proper divisors (1405823).

158845117 is a wasteful number, since it uses less digits than its factorization.

158845117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405822.

The product of its digits is 44800, while the sum is 40.

The square root of 158845117 is about 12603.3772061301. The cubic root of 158845117 is about 541.5741868257.

The spelling of 158845117 in words is "one hundred fifty-eight million, eight hundred forty-five thousand, one hundred seventeen".