900101 has 4 divisors (see below), whose sum is σ = 907104. Its totient is φ = 893100.

The previous prime is 900091. The next prime is 900103. The reversal of 900101 is 101009.

900101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 900101 - 2⁶ = 900037 is a prime.

It is a Duffinian number.

900101 is a modest number, since divided by 101 gives 90 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900103) 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, 3305 + ... + 3566.

It is an arithmetic number, because the mean of its divisors is an integer number (226776).

2⁹⁰⁰¹⁰¹ is an apocalyptic number.

It is an amenable number.

900101 is a deficient number, since it is larger than the sum of its proper divisors (7003).

900101 is a wasteful number, since it uses less digits than its factorization.

900101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7002.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 900101 is about 948.7365282311. The cubic root of 900101 is about 96.5525499709.

It can be divided in two parts, 900 and 101, that added together give a palindrome (1001).

The spelling of 900101 in words is "nine hundred thousand, one hundred one".