26271481 has 2 divisors, whose sum is σ = 26271482. Its totient is φ = 26271480.

The previous prime is 26271473. The next prime is 26271493. The reversal of 26271481 is 18417262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23853456 + 2418025 = 4884^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 26271481 - 2³ = 26271473 is a prime.

It is a super-2 number, since 2×26271481² = 1380381427866722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26271431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13135740 + 13135741.

It is an arithmetic number, because the mean of its divisors is an integer number (13135741).

Almost surely, 2^26271481 is an apocalyptic number.

It is an amenable number.

26271481 is a deficient number, since it is larger than the sum of its proper divisors (1).

26271481 is an equidigital number, since it uses as much as digits as its factorization.

26271481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 26271481 is about 5125.5712852325. The cubic root of 26271481 is about 297.2771430826.

The spelling of 26271481 in words is "twenty-six million, two hundred seventy-one thousand, four hundred eighty-one".