270147221 has 4 divisors (see below), whose sum is σ = 286038252. Its totient is φ = 254256192.

The previous prime is 270147217. The next prime is 270147233. The reversal of 270147221 is 122741072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 230280625 + 39866596 = 15175^2 + 6314^2 .

It is a cyclic number.

It is not a de Polignac number, because 270147221 - 2² = 270147217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270147271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7945490 + ... + 7945523.

It is an arithmetic number, because the mean of its divisors is an integer number (71509563).

Almost surely, 2^270147221 is an apocalyptic number.

It is an amenable number.

270147221 is a deficient number, since it is larger than the sum of its proper divisors (15891031).

270147221 is a wasteful number, since it uses less digits than its factorization.

270147221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15891030.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 270147221 is about 16436.1559070240. The cubic root of 270147221 is about 646.4478590090.

Adding to 270147221 its reverse (122741072), we get a palindrome (392888293).

The spelling of 270147221 in words is "two hundred seventy million, one hundred forty-seven thousand, two hundred twenty-one".