275232101 has 4 divisors (see below), whose sum is σ = 276823212. Its totient is φ = 273640992.

The previous prime is 275232077. The next prime is 275232103. The reversal of 275232101 is 101232572.

It is a happy number.

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 231009601 + 44222500 = 15199^2 + 6650^2 .

It is a cyclic number.

It is not a de Polignac number, because 275232101 - 2²² = 271037797 is a prime.

It is a super-4 number, since 4×275232101⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275232103) 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, 795296 + ... + 795641.

It is an arithmetic number, because the mean of its divisors is an integer number (69205803).

Almost surely, 2^275232101 is an apocalyptic number.

It is an amenable number.

275232101 is a deficient number, since it is larger than the sum of its proper divisors (1591111).

275232101 is a wasteful number, since it uses less digits than its factorization.

275232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591110.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 275232101 is about 16590.1205842513. The cubic root of 275232101 is about 650.4786226312.

Adding to 275232101 its reverse (101232572), we get a palindrome (376464673).

The spelling of 275232101 in words is "two hundred seventy-five million, two hundred thirty-two thousand, one hundred one".