11148919 has 4 divisors (see below), whose sum is σ = 11247696. Its totient is φ = 11050144.

The previous prime is 11148899. The next prime is 11148947. The reversal of 11148919 is 91984111.

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

It is a cyclic number.

It is not a de Polignac number, because 11148919 - 2⁵ = 11148887 is a prime.

It is a super-2 number, since 2×11148919² = 248596789737122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11148989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49219 + ... + 49444.

It is an arithmetic number, because the mean of its divisors is an integer number (2811924).

Almost surely, 2^11148919 is an apocalyptic number.

11148919 is a deficient number, since it is larger than the sum of its proper divisors (98777).

11148919 is an equidigital number, since it uses as much as digits as its factorization.

11148919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98776.

The product of its digits is 2592, while the sum is 34.

The square root of 11148919 is about 3338.9997005091. Note that the first 3 decimals coincide. The cubic root of 11148919 is about 223.3971286279.

The spelling of 11148919 in words is "eleven million, one hundred forty-eight thousand, nine hundred nineteen".