1091267101 has 8 divisors (see below), whose sum is σ = 1095096320. Its totient is φ = 1087445088.

The previous prime is 1091267083. The next prime is 1091267113. The reversal of 1091267101 is 1017621901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1091267101 - 2¹⁹ = 1090742813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1091267101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091267141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583570 + ... + 585436.

It is an arithmetic number, because the mean of its divisors is an integer number (136887040).

Almost surely, 2^1091267101 is an apocalyptic number.

It is an amenable number.

1091267101 is a deficient number, since it is larger than the sum of its proper divisors (3829219).

1091267101 is a wasteful number, since it uses less digits than its factorization.

1091267101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603.

The product of its (nonzero) digits is 756, while the sum is 28.

The square root of 1091267101 is about 33034.3321561069. The cubic root of 1091267101 is about 1029.5410972974.

The spelling of 1091267101 in words is "one billion, ninety-one million, two hundred sixty-seven thousand, one hundred one".