11138973 has 8 divisors (see below), whose sum is σ = 15019200. Its totient is φ = 7342368.

The previous prime is 11138909. The next prime is 11138983. The reversal of 11138973 is 37983111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11138973 - 2⁶ = 11138909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11138903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20593 + ... + 21126.

It is an arithmetic number, because the mean of its divisors is an integer number (1877400).

Almost surely, 2^11138973 is an apocalyptic number.

It is an amenable number.

11138973 is a deficient number, since it is larger than the sum of its proper divisors (3880227).

11138973 is an equidigital number, since it uses as much as digits as its factorization.

11138973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41811.

The product of its digits is 4536, while the sum is 33.

The square root of 11138973 is about 3337.5099999850. The cubic root of 11138973 is about 223.3306776744.

The spelling of 11138973 in words is "eleven million, one hundred thirty-eight thousand, nine hundred seventy-three".