10181091 has 8 divisors (see below), whose sum is σ = 13761040. Its totient is φ = 6694272.

The previous prime is 10181081. The next prime is 10181123. The reversal of 10181091 is 19018101.

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

It is not a de Polignac number, because 10181091 - 2⁹ = 10180579 is a prime.

It is a super-2 number, since 2×10181091² = 207309227900562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10181071) 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, 23026 + ... + 23463.

It is an arithmetic number, because the mean of its divisors is an integer number (1720130).

Almost surely, 2^10181091 is an apocalyptic number.

10181091 is a deficient number, since it is larger than the sum of its proper divisors (3579949).

10181091 is an equidigital number, since it uses as much as digits as its factorization.

10181091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46565.

The product of its (nonzero) digits is 72, while the sum is 21.

The square root of 10181091 is about 3190.7821925039. The cubic root of 10181091 is about 216.7361925462.

Adding to 10181091 its reverse (19018101), we get a palindrome (29199192).

The spelling of 10181091 in words is "ten million, one hundred eighty-one thousand, ninety-one".