212289995 has 8 divisors (see below), whose sum is σ = 254826816. Its totient is φ = 169779456.

The previous prime is 212289989. The next prime is 212289997. The reversal of 212289995 is 599982212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212289995 - 2¹⁶ = 212224459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212289997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25019 + ... + 32411.

It is an arithmetic number, because the mean of its divisors is an integer number (31853352).

Almost surely, 2^212289995 is an apocalyptic number.

212289995 is a deficient number, since it is larger than the sum of its proper divisors (42536821).

212289995 is an equidigital number, since it uses as much as digits as its factorization.

212289995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13141.

The product of its digits is 233280, while the sum is 47.

The square root of 212289995 is about 14570.1748445240. The cubic root of 212289995 is about 596.5449527888.

The spelling of 212289995 in words is "two hundred twelve million, two hundred eighty-nine thousand, nine hundred ninety-five".