26190481 has 2 divisors, whose sum is σ = 26190482. Its totient is φ = 26190480.

The previous prime is 26190473. The next prime is 26190499. The reversal of 26190481 is 18409162.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25160256 + 1030225 = 5016^2 + 1015^2 .

It is a cyclic number.

It is not a de Polignac number, because 26190481 - 2³ = 26190473 is a prime.

It is a super-2 number, since 2×26190481² = 1371882590022722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26190181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13095240 + 13095241.

It is an arithmetic number, because the mean of its divisors is an integer number (13095241).

Almost surely, 2^26190481 is an apocalyptic number.

It is an amenable number.

26190481 is a deficient number, since it is larger than the sum of its proper divisors (1).

26190481 is an equidigital number, since it uses as much as digits as its factorization.

26190481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 26190481 is about 5117.6636270861. The cubic root of 26190481 is about 296.9713077899.

The spelling of 26190481 in words is "twenty-six million, one hundred ninety thousand, four hundred eighty-one".