1091067601 has 8 divisors (see below), whose sum is σ = 1177551144. Its totient is φ = 1004949120.

The previous prime is 1091067587. The next prime is 1091067611. The reversal of 1091067601 is 1067601901.

It can be written as a sum of positive squares in 4 ways, for example, as 483025 + 1090584576 = 695^2 + 33024^2 .

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 1091067601 - 2⁵ = 1091067569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1091067611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85036 + ... + 97021.

It is an arithmetic number, because the mean of its divisors is an integer number (147193893).

Almost surely, 2^1091067601 is an apocalyptic number.

It is an amenable number.

1091067601 is a deficient number, since it is larger than the sum of its proper divisors (86483543).

1091067601 is a wasteful number, since it uses less digits than its factorization.

1091067601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182531.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 1091067601 is about 33031.3124322967. The cubic root of 1091067601 is about 1029.4783549537.

The spelling of 1091067601 in words is "one billion, ninety-one million, sixty-seven thousand, six hundred one".