162649393 has 2 divisors, whose sum is σ = 162649394. Its totient is φ = 162649392.

The previous prime is 162649381. The next prime is 162649397. The reversal of 162649393 is 393946261.

162649393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87011584 + 75637809 = 9328^2 + 8697^2 .

It is an emirp because it is prime and its reverse (393946261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162649393 is a prime.

It is not a weakly prime, because it can be changed into another prime (162649397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81324696 + 81324697.

It is an arithmetic number, because the mean of its divisors is an integer number (81324697).

Almost surely, 2^162649393 is an apocalyptic number.

It is an amenable number.

162649393 is a deficient number, since it is larger than the sum of its proper divisors (1).

162649393 is an equidigital number, since it uses as much as digits as its factorization.

162649393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 43.

The square root of 162649393 is about 12753.4071133952. The cubic root of 162649393 is about 545.8636174458.

The spelling of 162649393 in words is "one hundred sixty-two million, six hundred forty-nine thousand, three hundred ninety-three".