10091631 has 16 divisors (see below), whose sum is σ = 14826240. Its totient is φ = 6054720.

The previous prime is 10091629. The next prime is 10091651. The reversal of 10091631 is 13619001.

It is a happy number.

It is not a de Polignac number, because 10091631 - 2¹ = 10091629 is a prime.

It is a super-2 number, since 2×10091631² = 203682032480322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10091598 and 10091607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10091651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1915 + ... + 4883.

It is an arithmetic number, because the mean of its divisors is an integer number (926640).

Almost surely, 2^10091631 is an apocalyptic number.

10091631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10091631 is a deficient number, since it is larger than the sum of its proper divisors (4734609).

10091631 is a wasteful number, since it uses less digits than its factorization.

10091631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 10091631 is about 3176.7327555210. The cubic root of 10091631 is about 216.0995126174.

The spelling of 10091631 in words is "ten million, ninety-one thousand, six hundred thirty-one".