11345881 has 2 divisors, whose sum is σ = 11345882. Its totient is φ = 11345880.

The previous prime is 11345857. The next prime is 11345909. The reversal of 11345881 is 18854311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6170256 + 5175625 = 2484^2 + 2275^2 .

It is a cyclic number.

It is not a de Polignac number, because 11345881 - 2⁵ = 11345849 is a prime.

It is a super-2 number, since 2×11345881² = 257458031332322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11345801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5672940 + 5672941.

It is an arithmetic number, because the mean of its divisors is an integer number (5672941).

Almost surely, 2^11345881 is an apocalyptic number.

It is an amenable number.

11345881 is a deficient number, since it is larger than the sum of its proper divisors (1).

11345881 is an equidigital number, since it uses as much as digits as its factorization.

11345881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 31.

The square root of 11345881 is about 3368.3647367825. The cubic root of 11345881 is about 224.7050026987.

The spelling of 11345881 in words is "eleven million, three hundred forty-five thousand, eight hundred eighty-one".