11287145 has 16 divisors (see below), whose sum is σ = 13934592. Its totient is φ = 8773440.

The previous prime is 11287139. The next prime is 11287147. The reversal of 11287145 is 54178211.

11287145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11287145 - 2¹⁴ = 11270761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11287147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50504 + ... + 50726.

It is an arithmetic number, because the mean of its divisors is an integer number (870912).

Almost surely, 2^11287145 is an apocalyptic number.

It is an amenable number.

11287145 is a deficient number, since it is larger than the sum of its proper divisors (2647447).

11287145 is a wasteful number, since it uses less digits than its factorization.

11287145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472.

The product of its digits is 2240, while the sum is 29.

The square root of 11287145 is about 3359.6346527562. The cubic root of 11287145 is about 224.3165764509.

The spelling of 11287145 in words is "eleven million, two hundred eighty-seven thousand, one hundred forty-five".