26134421 has 4 divisors (see below), whose sum is σ = 26144844. Its totient is φ = 26124000.

The previous prime is 26134403. The next prime is 26134439. The reversal of 26134421 is 12443162.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (26134403) and next prime (26134439).

It can be written as a sum of positive squares in 2 ways, for example, as 1234321 + 24900100 = 1111^2 + 4990^2 .

It is a cyclic number.

It is not a de Polignac number, because 26134421 - 2¹⁸ = 25872277 is a prime.

It is a super-2 number, since 2×26134421² = 1366015922010482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26134621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091 + ... + 7311.

It is an arithmetic number, because the mean of its divisors is an integer number (6536211).

Almost surely, 2^26134421 is an apocalyptic number.

It is an amenable number.

26134421 is a deficient number, since it is larger than the sum of its proper divisors (10423).

26134421 is an equidigital number, since it uses as much as digits as its factorization.

26134421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10422.

The product of its digits is 1152, while the sum is 23.

The square root of 26134421 is about 5112.1835843405. The cubic root of 26134421 is about 296.7592701415.

Adding to 26134421 its reverse (12443162), we get a palindrome (38577583).

The spelling of 26134421 in words is "twenty-six million, one hundred thirty-four thousand, four hundred twenty-one".