162547123 has 2 divisors, whose sum is σ = 162547124. Its totient is φ = 162547122.

The previous prime is 162547097. The next prime is 162547193. The reversal of 162547123 is 321745261.

It is a weak prime.

It is an emirp because it is prime and its reverse (321745261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162547123 is a prime.

It is not a weakly prime, because it can be changed into another prime (162547193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81273561 + 81273562.

It is an arithmetic number, because the mean of its divisors is an integer number (81273562).

Almost surely, 2^162547123 is an apocalyptic number.

162547123 is a deficient number, since it is larger than the sum of its proper divisors (1).

162547123 is an equidigital number, since it uses as much as digits as its factorization.

162547123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 162547123 is about 12749.3969661314. The cubic root of 162547123 is about 545.7491848498.

The spelling of 162547123 in words is "one hundred sixty-two million, five hundred forty-seven thousand, one hundred twenty-three".