10540261 has 2 divisors, whose sum is σ = 10540262. Its totient is φ = 10540260.

The previous prime is 10540237. The next prime is 10540273. The reversal of 10540261 is 16204501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9647236 + 893025 = 3106^2 + 945^2 .

It is a cyclic number.

It is not a de Polignac number, because 10540261 - 2¹⁵ = 10507493 is a prime.

It is a super-2 number, since 2×10540261² = 222194203896242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10540661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5270130 + 5270131.

It is an arithmetic number, because the mean of its divisors is an integer number (5270131).

Almost surely, 2^10540261 is an apocalyptic number.

It is an amenable number.

10540261 is a deficient number, since it is larger than the sum of its proper divisors (1).

10540261 is an equidigital number, since it uses as much as digits as its factorization.

10540261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 10540261 is about 3246.5768125828. The cubic root of 10540261 is about 219.2554791130.

Adding to 10540261 its reverse (16204501), we get a palindrome (26744762).

It can be divided in two parts, 10540 and 261, that added together give a palindrome (10801).

The spelling of 10540261 in words is "ten million, five hundred forty thousand, two hundred sixty-one".