162172853 has 2 divisors, whose sum is σ = 162172854. Its totient is φ = 162172852.

The previous prime is 162172849. The next prime is 162172883. The reversal of 162172853 is 358271261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89548369 + 72624484 = 9463^2 + 8522^2 .

It is an emirp because it is prime and its reverse (358271261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162172853 - 2² = 162172849 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162172883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81086426 + 81086427.

It is an arithmetic number, because the mean of its divisors is an integer number (81086427).

Almost surely, 2^162172853 is an apocalyptic number.

It is an amenable number.

162172853 is a deficient number, since it is larger than the sum of its proper divisors (1).

162172853 is an equidigital number, since it uses as much as digits as its factorization.

162172853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 162172853 is about 12734.7105581556. The cubic root of 162172853 is about 545.3299945778.

The spelling of 162172853 in words is "one hundred sixty-two million, one hundred seventy-two thousand, eight hundred fifty-three".