900106631 has 4 divisors (see below), whose sum is σ = 908364600. Its totient is φ = 891848664.

The previous prime is 900106619. The next prime is 900106637. The reversal of 900106631 is 136601009.

900106631 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 an emirpimes, since its reverse is a distinct semiprime: 136601009 = 163 ⋅838043.

It is a cyclic number.

It is not a de Polignac number, because 900106631 - 2⁶ = 900106567 is a prime.

It is a super-2 number, since 2×900106631² = 1620383894340340322, which contains 22 as substring.

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 900106631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900106637) 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, 4128821 + ... + 4129038.

It is an arithmetic number, because the mean of its divisors is an integer number (227091150).

Almost surely, 2^900106631 is an apocalyptic number.

900106631 is a deficient number, since it is larger than the sum of its proper divisors (8257969).

900106631 is a wasteful number, since it uses less digits than its factorization.

900106631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8257968.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 900106631 is about 30001.7771306968. Note that the first 3 decimals coincide. The cubic root of 900106631 is about 965.5275131364.

The spelling of 900106631 in words is "nine hundred million, one hundred six thousand, six hundred thirty-one".