162942947 has 4 divisors (see below), whose sum is σ = 163056696. Its totient is φ = 162829200.

The previous prime is 162942919. The next prime is 162942959. The reversal of 162942947 is 749249261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 162942947 - 2⁸ = 162942691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162942898 and 162942907.

It is not an unprimeable number, because it can be changed into a prime (162942547) 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, 54698 + ... + 57599.

It is an arithmetic number, because the mean of its divisors is an integer number (40764174).

Almost surely, 2^162942947 is an apocalyptic number.

162942947 is a deficient number, since it is larger than the sum of its proper divisors (113749).

162942947 is a wasteful number, since it uses less digits than its factorization.

162942947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113748.

The product of its digits is 217728, while the sum is 44.

The square root of 162942947 is about 12764.9107713293. The cubic root of 162942947 is about 546.1918165245.

The spelling of 162942947 in words is "one hundred sixty-two million, nine hundred forty-two thousand, nine hundred forty-seven".