162148691 has 2 divisors, whose sum is σ = 162148692. Its totient is φ = 162148690.

The previous prime is 162148687. The next prime is 162148709. The reversal of 162148691 is 196841261.

It is a weak prime.

It is an emirp because it is prime and its reverse (196841261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162148691 - 2² = 162148687 is a prime.

It is not a weakly prime, because it can be changed into another prime (162148621) 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, 81074345 + 81074346.

It is an arithmetic number, because the mean of its divisors is an integer number (81074346).

Almost surely, 2^162148691 is an apocalyptic number.

162148691 is a deficient number, since it is larger than the sum of its proper divisors (1).

162148691 is an equidigital number, since it uses as much as digits as its factorization.

162148691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 162148691 is about 12733.7618557911. The cubic root of 162148691 is about 545.3029104769.

The spelling of 162148691 in words is "one hundred sixty-two million, one hundred forty-eight thousand, six hundred ninety-one".