11155151 has 4 divisors (see below), whose sum is σ = 12748752. Its totient is φ = 9561552.

The previous prime is 11155139. The next prime is 11155181. The reversal of 11155151 is 15155111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15155111 = 103 ⋅147137.

It is not a de Polignac number, because 11155151 - 2¹⁴ = 11138767 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 (11155181) 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, 796790 + ... + 796803.

It is an arithmetic number, because the mean of its divisors is an integer number (3187188).

Almost surely, 2^11155151 is an apocalyptic number.

11155151 is a deficient number, since it is larger than the sum of its proper divisors (1593601).

11155151 is an equidigital number, since it uses as much as digits as its factorization.

11155151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593600.

The product of its digits is 125, while the sum is 20.

The square root of 11155151 is about 3339.9327837548. The cubic root of 11155151 is about 223.4387455650.

The spelling of 11155151 in words is "eleven million, one hundred fifty-five thousand, one hundred fifty-one".