1090100001 has 4 divisors (see below), whose sum is σ = 1453466672. Its totient is φ = 726733332.

The previous prime is 1090099981. The next prime is 1090100003. The reversal of 1090100001 is 1000010901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1090100001 - 2⁹ = 1090099489 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 1090100001.

It is not an unprimeable number, because it can be changed into a prime (1090100003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181683331 + ... + 181683336.

It is an arithmetic number, because the mean of its divisors is an integer number (363366668).

Almost surely, 2^1090100001 is an apocalyptic number.

It is an amenable number.

1090100001 is a deficient number, since it is larger than the sum of its proper divisors (363366671).

1090100001 is an equidigital number, since it uses as much as digits as its factorization.

1090100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363366670.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 1090100001 is about 33016.6624751806. The cubic root of 1090100001 is about 1029.1739381705.

Adding to 1090100001 its reverse (1000010901), we get a palindrome (2090110902).

The spelling of 1090100001 in words is "one billion, ninety million, one hundred thousand, one".