275212949 has 16 divisors (see below), whose sum is σ = 319878720. Its totient is φ = 234005760.

The previous prime is 275212939. The next prime is 275212957. The reversal of 275212949 is 949212572.

It is a cyclic number.

It is not a de Polignac number, because 275212949 - 2¹² = 275208853 is a prime.

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 (275212909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25967 + ... + 34995.

It is an arithmetic number, because the mean of its divisors is an integer number (19992420).

Almost surely, 2^275212949 is an apocalyptic number.

It is an amenable number.

275212949 is a deficient number, since it is larger than the sum of its proper divisors (44665771).

275212949 is a wasteful number, since it uses less digits than its factorization.

275212949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9220.

The product of its digits is 90720, while the sum is 41.

The square root of 275212949 is about 16589.5433632153. The cubic root of 275212949 is about 650.4635344499.

The spelling of 275212949 in words is "two hundred seventy-five million, two hundred twelve thousand, nine hundred forty-nine".