162195947 has 4 divisors (see below), whose sum is σ = 163434216. Its totient is φ = 160957680.

The previous prime is 162195923. The next prime is 162195961. The reversal of 162195947 is 749591261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749591261 = 367 ⋅2042483.

It is a cyclic number.

It is not a de Polignac number, because 162195947 - 2⁶ = 162195883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162195898 and 162195907.

It is not an unprimeable number, because it can be changed into a prime (162195907) 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, 618938 + ... + 619199.

It is an arithmetic number, because the mean of its divisors is an integer number (40858554).

Almost surely, 2^162195947 is an apocalyptic number.

162195947 is a deficient number, since it is larger than the sum of its proper divisors (1238269).

162195947 is a wasteful number, since it uses less digits than its factorization.

162195947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238268.

The product of its digits is 136080, while the sum is 44.

The square root of 162195947 is about 12735.6172602666. The cubic root of 162195947 is about 545.3558790028.

The spelling of 162195947 in words is "one hundred sixty-two million, one hundred ninety-five thousand, nine hundred forty-seven".