11261869 has 2 divisors, whose sum is σ = 11261870. Its totient is φ = 11261868.

The previous prime is 11261849. The next prime is 11261891. The reversal of 11261869 is 96816211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7912969 + 3348900 = 2813^2 + 1830^2 .

It is a cyclic number.

It is not a de Polignac number, because 11261869 - 2⁷ = 11261741 is a prime.

It is a super-2 number, since 2×11261869² = 253659386746322, which contains 22 as substring.

It is equal to p₇₄₂₆₇₈ and since 11261869 and 742678 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11261819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5630934 + 5630935.

It is an arithmetic number, because the mean of its divisors is an integer number (5630935).

Almost surely, 2^11261869 is an apocalyptic number.

It is an amenable number.

11261869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11261869 is an equidigital number, since it uses as much as digits as its factorization.

11261869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 34.

The square root of 11261869 is about 3355.8708258811. The cubic root of 11261869 is about 224.1490093255.

The spelling of 11261869 in words is "eleven million, two hundred sixty-one thousand, eight hundred sixty-nine".