1091960275 has 72 divisors (see below), whose sum is σ = 1647013632. Its totient is φ = 703080000.

The previous prime is 1091960263. The next prime is 1091960279. The reversal of 1091960275 is 5720691901.

It is not a de Polignac number, because 1091960275 - 2¹³ = 1091952083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1091960279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7231450 + ... + 7231600.

Almost surely, 2^1091960275 is an apocalyptic number.

1091960275 is a deficient number, since it is larger than the sum of its proper divisors (555053357).

1091960275 is a wasteful number, since it uses less digits than its factorization.

1091960275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 1091960275 is about 33044.8222116567. The cubic root of 1091960275 is about 1029.7590396842.

The spelling of 1091960275 in words is "one billion, ninety-one million, nine hundred sixty thousand, two hundred seventy-five".