212177323 has 16 divisors (see below), whose sum is σ = 237758976. Its totient is φ = 188298880.

The previous prime is 212177281. The next prime is 212177333. The reversal of 212177323 is 323771212.

It is a happy number.

212177323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 212177323 - 2¹³ = 212169131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212177291 and 212177300.

It is not an unprimeable number, because it can be changed into a prime (212177333) 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, 23940 + ... + 31582.

It is an arithmetic number, because the mean of its divisors is an integer number (14859936).

Almost surely, 2^212177323 is an apocalyptic number.

212177323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212177323 is a deficient number, since it is larger than the sum of its proper divisors (25581653).

212177323 is a wasteful number, since it uses less digits than its factorization.

212177323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7754.

The product of its digits is 3528, while the sum is 28.

The square root of 212177323 is about 14566.3078025971. The cubic root of 212177323 is about 596.4393962244.

The spelling of 212177323 in words is "two hundred twelve million, one hundred seventy-seven thousand, three hundred twenty-three".