162100447 has 4 divisors (see below), whose sum is σ = 165159000. Its totient is φ = 159041896.

The previous prime is 162100439. The next prime is 162100451. The reversal of 162100447 is 744001261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744001261 = 71 ⋅10478891.

It is a cyclic number.

It is not a de Polignac number, because 162100447 - 2³ = 162100439 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 (162100427) 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, 1529197 + ... + 1529302.

It is an arithmetic number, because the mean of its divisors is an integer number (41289750).

Almost surely, 2^162100447 is an apocalyptic number.

162100447 is a deficient number, since it is larger than the sum of its proper divisors (3058553).

162100447 is an equidigital number, since it uses as much as digits as its factorization.

162100447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058552.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 162100447 is about 12731.8673807105. The cubic root of 162100447 is about 545.2488238996.

The spelling of 162100447 in words is "one hundred sixty-two million, one hundred thousand, four hundred forty-seven".