11187901 has 4 divisors (see below), whose sum is σ = 11329600. Its totient is φ = 11046204.

The previous prime is 11187899. The next prime is 11187973. The reversal of 11187901 is 10978111.

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 a cyclic number.

It is not a de Polignac number, because 11187901 - 2¹ = 11187899 is a prime.

It is a super-3 number, since 3×11187901³ (a number of 22 digits) contains 333 as substring.

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 11187901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11187101) 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, 70731 + ... + 70888.

It is an arithmetic number, because the mean of its divisors is an integer number (2832400).

Almost surely, 2^11187901 is an apocalyptic number.

It is an amenable number.

11187901 is a deficient number, since it is larger than the sum of its proper divisors (141699).

11187901 is an equidigital number, since it uses as much as digits as its factorization.

11187901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141698.

The product of its (nonzero) digits is 504, while the sum is 28.

The square root of 11187901 is about 3344.8319838222. The cubic root of 11187901 is about 223.6571938076.

The spelling of 11187901 in words is "eleven million, one hundred eighty-seven thousand, nine hundred one".