11913151 has 4 divisors (see below), whose sum is σ = 11922832. Its totient is φ = 11903472.

The previous prime is 11913131. The next prime is 11913163. The reversal of 11913151 is 15131911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 15131911 = 41 ⋅369071.

It is a cyclic number.

It is not a de Polignac number, because 11913151 - 2⁵ = 11913119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11913101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2670 + ... + 5563.

It is an arithmetic number, because the mean of its divisors is an integer number (2980708).

Almost surely, 2^11913151 is an apocalyptic number.

11913151 is a deficient number, since it is larger than the sum of its proper divisors (9681).

11913151 is an equidigital number, since it uses as much as digits as its factorization.

11913151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9680.

The product of its digits is 135, while the sum is 22.

The square root of 11913151 is about 3451.5432780135. The cubic root of 11913151 is about 228.3891924122.

The spelling of 11913151 in words is "eleven million, nine hundred thirteen thousand, one hundred fifty-one".