11540973 has 4 divisors (see below), whose sum is σ = 15387968. Its totient is φ = 7693980.

The previous prime is 11540957. The next prime is 11540981. The reversal of 11540973 is 37904511.

11540973 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11540973 - 2⁴ = 11540957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11540973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11540953) 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, 1923493 + ... + 1923498.

It is an arithmetic number, because the mean of its divisors is an integer number (3846992).

Almost surely, 2^11540973 is an apocalyptic number.

It is an amenable number.

11540973 is a deficient number, since it is larger than the sum of its proper divisors (3846995).

11540973 is an equidigital number, since it uses as much as digits as its factorization.

11540973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846994.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 11540973 is about 3397.2007594489. The cubic root of 11540973 is about 225.9856218174.

The spelling of 11540973 in words is "eleven million, five hundred forty thousand, nine hundred seventy-three".