275070389 has 6 divisors (see below), whose sum is σ = 302350230. Its totient is φ = 250063880.

The previous prime is 275070379. The next prime is 275070403. The reversal of 275070389 is 983070572.

It can be written as a sum of positive squares in only one way, i.e., 211469764 + 63600625 = 14542^2 + 7975^2 .

It is not a de Polignac number, because 275070389 - 2¹² = 275066293 is a prime.

It is a super-2 number, since 2×275070389² = 151327437809222642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275070379) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1136534 + ... + 1136775.

It is an arithmetic number, because the mean of its divisors is an integer number (50391705).

Almost surely, 2^275070389 is an apocalyptic number.

It is an amenable number.

275070389 is a deficient number, since it is larger than the sum of its proper divisors (27279841).

275070389 is a wasteful number, since it uses less digits than its factorization.

275070389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273331 (or 2273320 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 275070389 is about 16585.2461241912. The cubic root of 275070389 is about 650.3512019237.

The spelling of 275070389 in words is "two hundred seventy-five million, seventy thousand, three hundred eighty-nine".