162276021 has 16 divisors (see below), whose sum is σ = 240609600. Its totient is φ = 108093744.

The previous prime is 162276013. The next prime is 162276029. The reversal of 162276021 is 120672261.

It is an interprime number because it is at equal distance from previous prime (162276013) and next prime (162276029).

It is not a de Polignac number, because 162276021 - 2³ = 162276013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162276029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51915 + ... + 54951.

It is an arithmetic number, because the mean of its divisors is an integer number (15038100).

Almost surely, 2^162276021 is an apocalyptic number.

It is an amenable number.

162276021 is a deficient number, since it is larger than the sum of its proper divisors (78333579).

162276021 is a wasteful number, since it uses less digits than its factorization.

162276021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025 (or 5019 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 162276021 is about 12738.7605755034. The cubic root of 162276021 is about 545.4456092400.

The spelling of 162276021 in words is "one hundred sixty-two million, two hundred seventy-six thousand, twenty-one".