1091485001 has 16 divisors (see below), whose sum is σ = 1162497600. Its totient is φ = 1021906368.

The previous prime is 1091484991. The next prime is 1091485013. The reversal of 1091485001 is 1005841901.

It is a cyclic number.

It is not a de Polignac number, because 1091485001 - 2⁶ = 1091484937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1091485091) 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, 609215 + ... + 611003.

It is an arithmetic number, because the mean of its divisors is an integer number (72656100).

Almost surely, 2^1091485001 is an apocalyptic number.

It is an amenable number.

1091485001 is a deficient number, since it is larger than the sum of its proper divisors (71012599).

1091485001 is a wasteful number, since it uses less digits than its factorization.

1091485001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 1091485001 is about 33037.6300754155. The cubic root of 1091485001 is about 1029.6096176669.

The spelling of 1091485001 in words is "one billion, ninety-one million, four hundred eighty-five thousand, one".