162345021 has 4 divisors (see below), whose sum is σ = 216460032. Its totient is φ = 108230012.

The previous prime is 162345013. The next prime is 162345023. The reversal of 162345021 is 120543261.

162345021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 162345021 - 2³ = 162345013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 162344982 and 162345000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162345023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27057501 + ... + 27057506.

It is an arithmetic number, because the mean of its divisors is an integer number (54115008).

Almost surely, 2^162345021 is an apocalyptic number.

It is an amenable number.

162345021 is a deficient number, since it is larger than the sum of its proper divisors (54115011).

162345021 is an equidigital number, since it uses as much as digits as its factorization.

162345021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54115010.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 162345021 is about 12741.4685574309. The cubic root of 162345021 is about 545.5229063740.

Adding to 162345021 its reverse (120543261), we get a palindrome (282888282).

The spelling of 162345021 in words is "one hundred sixty-two million, three hundred forty-five thousand, twenty-one".