11241987 has 4 divisors (see below), whose sum is σ = 14989320. Its totient is φ = 7494656.

The previous prime is 11241973. The next prime is 11242001. The reversal of 11241987 is 78914211.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11241973) and next prime (11242001).

It is a cyclic number.

It is not a de Polignac number, because 11241987 - 2⁷ = 11241859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11241907) 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, 1873662 + ... + 1873667.

It is an arithmetic number, because the mean of its divisors is an integer number (3747330).

Almost surely, 2^11241987 is an apocalyptic number.

11241987 is a deficient number, since it is larger than the sum of its proper divisors (3747333).

11241987 is an equidigital number, since it uses as much as digits as its factorization.

11241987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747332.

The product of its digits is 4032, while the sum is 33.

The square root of 11241987 is about 3352.9072459583. The cubic root of 11241987 is about 224.0170254385.

The spelling of 11241987 in words is "eleven million, two hundred forty-one thousand, nine hundred eighty-seven".