11145878 has 4 divisors (see below), whose sum is σ = 16718820. Its totient is φ = 5572938.

The previous prime is 11145839. The next prime is 11145899. The reversal of 11145878 is 87854111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2786468 + ... + 2786471.

It is an arithmetic number, because the mean of its divisors is an integer number (4179705).

Almost surely, 2^11145878 is an apocalyptic number.

11145878 is a deficient number, since it is larger than the sum of its proper divisors (5572942).

11145878 is an equidigital number, since it uses as much as digits as its factorization.

11145878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572941.

The product of its digits is 8960, while the sum is 35.

The square root of 11145878 is about 3338.5442935507. The cubic root of 11145878 is about 223.3768153747.

Adding to 11145878 its reverse (87854111), we get a palindrome (98999989).

The spelling of 11145878 in words is "eleven million, one hundred forty-five thousand, eight hundred seventy-eight".