212150161 has 8 divisors (see below), whose sum is σ = 213711264. Its totient is φ = 210594720.

The previous prime is 212150153. The next prime is 212150171. The reversal of 212150161 is 161051212.

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 212150161 - 2³ = 212150153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212150171) 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 7 ways as a sum of consecutive naturals, for example, 97461 + ... + 99613.

It is an arithmetic number, because the mean of its divisors is an integer number (26713908).

Almost surely, 2^212150161 is an apocalyptic number.

It is an amenable number.

212150161 is a deficient number, since it is larger than the sum of its proper divisors (1561103).

212150161 is a wasteful number, since it uses less digits than its factorization.

212150161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 212150161 is about 14565.3754156905. The cubic root of 212150161 is about 596.4139439627.

The spelling of 212150161 in words is "two hundred twelve million, one hundred fifty thousand, one hundred sixty-one".