10122091 has 8 divisors (see below), whose sum is σ = 11588864. Its totient is φ = 8660520.

The previous prime is 10122043. The next prime is 10122113. The reversal of 10122091 is 19022101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 9-Lehmer number, since φ(10122091) divides (10122091-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 10122091 - 2⁷ = 10121963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10122011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4786 + ... + 6568.

It is an arithmetic number, because the mean of its divisors is an integer number (1448608).

Almost surely, 2^10122091 is an apocalyptic number.

10122091 is a deficient number, since it is larger than the sum of its proper divisors (1466773).

10122091 is an equidigital number, since it uses as much as digits as its factorization.

10122091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 10122091 is about 3181.5233772518. The cubic root of 10122091 is about 216.3167150233.

Adding to 10122091 its reverse (19022101), we get a palindrome (29144192).

The spelling of 10122091 in words is "ten million, one hundred twenty-two thousand, ninety-one".