270457021 has 2 divisors, whose sum is σ = 270457022. Its totient is φ = 270457020.

The previous prime is 270456997. The next prime is 270457037. The reversal of 270457021 is 120754072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154032921 + 116424100 = 12411^2 + 10790^2 .

It is a cyclic number.

It is not a de Polignac number, because 270457021 - 2²⁷ = 136239293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (270451021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135228510 + 135228511.

It is an arithmetic number, because the mean of its divisors is an integer number (135228511).

Almost surely, 2^270457021 is an apocalyptic number.

It is an amenable number.

270457021 is a deficient number, since it is larger than the sum of its proper divisors (1).

270457021 is an equidigital number, since it uses as much as digits as its factorization.

270457021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 270457021 is about 16445.5775514270. The cubic root of 270457021 is about 646.6948762212.

The spelling of 270457021 in words is "two hundred seventy million, four hundred fifty-seven thousand, twenty-one".