26140831 has 2 divisors, whose sum is σ = 26140832. Its totient is φ = 26140830.

The previous prime is 26140823. The next prime is 26140837. The reversal of 26140831 is 13804162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26140831 - 2³ = 26140823 is a prime.

It is a super-2 number, since 2×26140831² = 1366686090741122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26140796 and 26140805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26140837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13070415 + 13070416.

It is an arithmetic number, because the mean of its divisors is an integer number (13070416).

Almost surely, 2^26140831 is an apocalyptic number.

26140831 is a deficient number, since it is larger than the sum of its proper divisors (1).

26140831 is an equidigital number, since it uses as much as digits as its factorization.

26140831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 26140831 is about 5112.8104795699. The cubic root of 26140831 is about 296.7835302469.

Adding to 26140831 its reverse (13804162), we get a palindrome (39944993).

The spelling of 26140831 in words is "twenty-six million, one hundred forty thousand, eight hundred thirty-one".