9010090001 has 4 divisors (see below), whose sum is σ = 9829189104. Its totient is φ = 8190990900.

The previous prime is 9010089971. The next prime is 9010090009. The reversal of 9010090001 is 1000900109.

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 a cyclic number.

It is not a de Polignac number, because 9010090001 - 2³⁰ = 7936348177 is a prime.

It is a super-2 number, since 2×9010090001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9010090009) 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, 409549535 + ... + 409549556.

It is an arithmetic number, because the mean of its divisors is an integer number (2457297276).

Almost surely, 2^9010090001 is an apocalyptic number.

It is an amenable number.

9010090001 is a deficient number, since it is larger than the sum of its proper divisors (819099103).

9010090001 is a wasteful number, since it uses less digits than its factorization.

9010090001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819099102.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 9010090001 is about 94921.4938831032. The cubic root of 9010090001 is about 2080.8608678454.

The spelling of 9010090001 in words is "nine billion, ten million, ninety thousand, one".