1089099001 has 2 divisors, whose sum is σ = 1089099002. Its totient is φ = 1089099000.

The previous prime is 1089098987. The next prime is 1089099029. The reversal of 1089099001 is 1009909801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1004826601 + 84272400 = 31699^2 + 9180^2 .

It is an emirp because it is prime and its reverse (1009909801) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1006606801 and 1086066001.

It is a cyclic number.

It is not a de Polignac number, because 1089099001 - 2¹⁵ = 1089066233 is a prime.

It is a super-2 number, since 2×1089099001² = 2372273267958396002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1089099061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544549500 + 544549501.

It is an arithmetic number, because the mean of its divisors is an integer number (544549501).

Almost surely, 2^1089099001 is an apocalyptic number.

It is an amenable number.

1089099001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089099001 is an equidigital number, since it uses as much as digits as its factorization.

1089099001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 1089099001 is about 33001.4999810615. The cubic root of 1089099001 is about 1028.8588237758.

The spelling of 1089099001 in words is "one billion, eighty-nine million, ninety-nine thousand, one".