11140051 has 4 divisors (see below), whose sum is σ = 11996992. Its totient is φ = 10283112.

The previous prime is 11140043. The next prime is 11140079. The reversal of 11140051 is 15004111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15004111 = 197 ⋅76163.

It is a cyclic number.

It is not a de Polignac number, because 11140051 - 2³ = 11140043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 856927 = 11140051 / (1 + 1 + 1 + 4 + 0 + 0 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11140001) 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, 428451 + ... + 428476.

It is an arithmetic number, because the mean of its divisors is an integer number (2999248).

Almost surely, 2^11140051 is an apocalyptic number.

11140051 is a deficient number, since it is larger than the sum of its proper divisors (856941).

11140051 is an equidigital number, since it uses as much as digits as its factorization.

11140051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856940.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 11140051 is about 3337.6714937213. The cubic root of 11140051 is about 223.3378818905.

Adding to 11140051 its reverse (15004111), we get a palindrome (26144162).

The spelling of 11140051 in words is "eleven million, one hundred forty thousand, fifty-one".