162257087 has 2 divisors, whose sum is σ = 162257088. Its totient is φ = 162257086.

The previous prime is 162257077. The next prime is 162257107. The reversal of 162257087 is 780752261.

It is a weak prime.

It is an emirp because it is prime and its reverse (780752261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162257087 - 2⁴ = 162257071 is a prime.

It is a super-3 number, since 3×162257087³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is equal to p_9093845 and since 162257087 and 9093845 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162257087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162257077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81128543 + 81128544.

It is an arithmetic number, because the mean of its divisors is an integer number (81128544).

Almost surely, 2^162257087 is an apocalyptic number.

162257087 is a deficient number, since it is larger than the sum of its proper divisors (1).

162257087 is an equidigital number, since it uses as much as digits as its factorization.

162257087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 162257087 is about 12738.0173889032. The cubic root of 162257087 is about 545.4243946272.

The spelling of 162257087 in words is "one hundred sixty-two million, two hundred fifty-seven thousand, eighty-seven".