162681947 has 2 divisors, whose sum is σ = 162681948. Its totient is φ = 162681946.

The previous prime is 162681917. The next prime is 162681979. The reversal of 162681947 is 749186261.

162681947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162681947 - 2¹⁴ = 162665563 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 162681898 and 162681907.

It is not a weakly prime, because it can be changed into another prime (162681907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81340973 + 81340974.

It is an arithmetic number, because the mean of its divisors is an integer number (81340974).

Almost surely, 2^162681947 is an apocalyptic number.

162681947 is a deficient number, since it is larger than the sum of its proper divisors (1).

162681947 is an equidigital number, since it uses as much as digits as its factorization.

162681947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 162681947 is about 12754.6833359359. The cubic root of 162681947 is about 545.9000329086.

The spelling of 162681947 in words is "one hundred sixty-two million, six hundred eighty-one thousand, nine hundred forty-seven".