162545421 has 16 divisors (see below), whose sum is σ = 218731968. Its totient is φ = 107366400.

The previous prime is 162545363. The next prime is 162545447. The reversal of 162545421 is 124545261.

162545421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 162545421 - 2⁹ = 162544909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162545321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253261 + ... + 253901.

It is an arithmetic number, because the mean of its divisors is an integer number (13670748).

Almost surely, 2^162545421 is an apocalyptic number.

It is an amenable number.

162545421 is a deficient number, since it is larger than the sum of its proper divisors (56186547).

162545421 is a wasteful number, since it uses less digits than its factorization.

162545421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its digits is 9600, while the sum is 30.

The square root of 162545421 is about 12749.3302177016. The cubic root of 162545421 is about 545.7472800312.

The spelling of 162545421 in words is "one hundred sixty-two million, five hundred forty-five thousand, four hundred twenty-one".