162408791 has 4 divisors (see below), whose sum is σ = 162899784. Its totient is φ = 161917800.

The previous prime is 162408761. The next prime is 162408793. The reversal of 162408791 is 197804261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 197804261 = 409 ⋅483629.

It is a cyclic number.

It is not a de Polignac number, because 162408791 - 2¹⁰ = 162407767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162408793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245000 + ... + 245661.

It is an arithmetic number, because the mean of its divisors is an integer number (40724946).

Almost surely, 2^162408791 is an apocalyptic number.

162408791 is a deficient number, since it is larger than the sum of its proper divisors (490993).

162408791 is an equidigital number, since it uses as much as digits as its factorization.

162408791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490992.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 162408791 is about 12743.9707705252. The cubic root of 162408791 is about 545.5943251371.

The spelling of 162408791 in words is "one hundred sixty-two million, four hundred eight thousand, seven hundred ninety-one".