10100091 has 16 divisors (see below), whose sum is σ = 14752800. Its totient is φ = 6117888.

The previous prime is 10100089. The next prime is 10100099. The reversal of 10100091 is 19000101.

It is not a de Polignac number, because 10100091 - 2¹ = 10100089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10100099) 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, 1936 + ... + 4893.

It is an arithmetic number, because the mean of its divisors is an integer number (922050).

Almost surely, 2^10100091 is an apocalyptic number.

10100091 is a deficient number, since it is larger than the sum of its proper divisors (4652709).

10100091 is a wasteful number, since it uses less digits than its factorization.

10100091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6878.

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

The square root of 10100091 is about 3178.0640333385. The cubic root of 10100091 is about 216.1598824837.

Adding to 10100091 its reverse (19000101), we get a palindrome (29100192).

The spelling of 10100091 in words is "ten million, one hundred thousand, ninety-one".