11137923 has 6 divisors (see below), whose sum is σ = 16088124. Its totient is φ = 7425276.

The previous prime is 11137921. The next prime is 11137927. The reversal of 11137923 is 32973111.

It is not a de Polignac number, because 11137923 - 2¹ = 11137921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11137921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618765 + ... + 618782.

It is an arithmetic number, because the mean of its divisors is an integer number (2681354).

Almost surely, 2^11137923 is an apocalyptic number.

11137923 is a deficient number, since it is larger than the sum of its proper divisors (4950201).

11137923 is a wasteful number, since it uses less digits than its factorization.

11137923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237553 (or 1237550 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 11137923 is about 3337.3526933784. The cubic root of 11137923 is about 223.3236601340.

The spelling of 11137923 in words is "eleven million, one hundred thirty-seven thousand, nine hundred twenty-three".