162421153 has 2 divisors, whose sum is σ = 162421154. Its totient is φ = 162421152.

The previous prime is 162421151. The next prime is 162421169. The reversal of 162421153 is 351124261.

It is a happy number.

162421153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120275089 + 42146064 = 10967^2 + 6492^2 .

It is a cyclic number.

It is not a de Polignac number, because 162421153 - 2¹ = 162421151 is a prime.

Together with 162421151, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (162421151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81210576 + 81210577.

It is an arithmetic number, because the mean of its divisors is an integer number (81210577).

Almost surely, 2^162421153 is an apocalyptic number.

It is an amenable number.

162421153 is a deficient number, since it is larger than the sum of its proper divisors (1).

162421153 is an equidigital number, since it uses as much as digits as its factorization.

162421153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 162421153 is about 12744.4557749635. The cubic root of 162421153 is about 545.6081677086.

The spelling of 162421153 in words is "one hundred sixty-two million, four hundred twenty-one thousand, one hundred fifty-three".