215275161 has 8 divisors (see below), whose sum is σ = 291739264. Its totient is φ = 141163920.

The previous prime is 215275127. The next prime is 215275171. The reversal of 215275161 is 161572512.

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

It is not a de Polignac number, because 215275161 - 2¹³ = 215266969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215275121) 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, 588001 + ... + 588366.

It is an arithmetic number, because the mean of its divisors is an integer number (36467408).

Almost surely, 2^215275161 is an apocalyptic number.

It is an amenable number.

215275161 is a deficient number, since it is larger than the sum of its proper divisors (76464103).

215275161 is a wasteful number, since it uses less digits than its factorization.

215275161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176431.

The product of its digits is 4200, while the sum is 30.

The square root of 215275161 is about 14672.2582106505. The cubic root of 215275161 is about 599.3281006441.

The spelling of 215275161 in words is "two hundred fifteen million, two hundred seventy-five thousand, one hundred sixty-one".