11780133 has 16 divisors (see below), whose sum is σ = 17507520. Its totient is φ = 7001856.

The previous prime is 11780123. The next prime is 11780147. The reversal of 11780133 is 33108711.

It is not a de Polignac number, because 11780133 - 2⁵ = 11780101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11780113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5110 + ... + 7047.

It is an arithmetic number, because the mean of its divisors is an integer number (1094220).

Almost surely, 2^11780133 is an apocalyptic number.

It is an amenable number.

11780133 is a deficient number, since it is larger than the sum of its proper divisors (5727387).

11780133 is a wasteful number, since it uses less digits than its factorization.

11780133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12196.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 11780133 is about 3432.2198356166. The cubic root of 11780133 is about 227.5359714484.

Adding to 11780133 its reverse (33108711), we get a palindrome (44888844).

The spelling of 11780133 in words is "eleven million, seven hundred eighty thousand, one hundred thirty-three".