26121161 has 8 divisors (see below), whose sum is σ = 28763424. Its totient is φ = 23523520.

The previous prime is 26121133. The next prime is 26121187. The reversal of 26121161 is 16112162.

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

It is a cyclic number.

It is not a de Polignac number, because 26121161 - 2¹⁰ = 26120137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26121131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9920 + ... + 12273.

It is an arithmetic number, because the mean of its divisors is an integer number (3595428).

Almost surely, 2^26121161 is an apocalyptic number.

It is an amenable number.

26121161 is a deficient number, since it is larger than the sum of its proper divisors (2642263).

26121161 is a wasteful number, since it uses less digits than its factorization.

26121161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22311.

The product of its digits is 144, while the sum is 20.

The square root of 26121161 is about 5110.8865180123. The cubic root of 26121161 is about 296.7090720569.

It can be divided in two parts, 2612 and 1161, that added together give a palindrome (3773).

The spelling of 26121161 in words is "twenty-six million, one hundred twenty-one thousand, one hundred sixty-one".