11812501 has 8 divisors (see below), whose sum is σ = 13051584. Its totient is φ = 10633920.

The previous prime is 11812459. The next prime is 11812513. The reversal of 11812501 is 10521811.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11812501 - 2¹⁷ = 11681429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11812561) 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 7 ways as a sum of consecutive naturals, for example, 14715 + ... + 15496.

It is an arithmetic number, because the mean of its divisors is an integer number (1631448).

Almost surely, 2^11812501 is an apocalyptic number.

It is an amenable number.

11812501 is a deficient number, since it is larger than the sum of its proper divisors (1239083).

11812501 is a wasteful number, since it uses less digits than its factorization.

11812501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30251.

The product of its (nonzero) digits is 80, while the sum is 19.

The square root of 11812501 is about 3436.9319166955. The cubic root of 11812501 is about 227.7441793173.

The spelling of 11812501 in words is "eleven million, eight hundred twelve thousand, five hundred one".