26061231 has 32 divisors (see below), whose sum is σ = 42024960. Its totient is φ = 14043744.

The previous prime is 26061229. The next prime is 26061263. The reversal of 26061231 is 13216062.

It is a happy number.

It is not a de Polignac number, because 26061231 - 2¹ = 26061229 is a prime.

It is a super-2 number, since 2×26061231² = 1358375522470722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 26061198 and 26061207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26061031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37816 + ... + 38498.

It is an arithmetic number, because the mean of its divisors is an integer number (1313280).

Almost surely, 2^26061231 is an apocalyptic number.

26061231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26061231 is a deficient number, since it is larger than the sum of its proper divisors (15963729).

26061231 is a wasteful number, since it uses less digits than its factorization.

26061231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 26061231 is about 5105.0201762579. The cubic root of 26061231 is about 296.4819842563.

Adding to 26061231 its reverse (13216062), we get a palindrome (39277293).

The spelling of 26061231 in words is "twenty-six million, sixty-one thousand, two hundred thirty-one".