270021161 has 8 divisors (see below), whose sum is σ = 273584640. Its totient is φ = 266465232.

The previous prime is 270021151. The next prime is 270021163. The reversal of 270021161 is 161120072.

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 270021161 - 2²² = 265826857 is a prime.

It is a super-2 number, since 2×270021161² = 145822854775575842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (270021163) 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, 119480 + ... + 121718.

It is an arithmetic number, because the mean of its divisors is an integer number (34198080).

Almost surely, 2^270021161 is an apocalyptic number.

It is an amenable number.

270021161 is a deficient number, since it is larger than the sum of its proper divisors (3563479).

270021161 is a wasteful number, since it uses less digits than its factorization.

270021161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 270021161 is about 16432.3206212634. The cubic root of 270021161 is about 646.3472917509.

The spelling of 270021161 in words is "two hundred seventy million, twenty-one thousand, one hundred sixty-one".