11387145 has 32 divisors (see below), whose sum is σ = 22717440. Its totient is φ = 4731840.

The previous prime is 11387143. The next prime is 11387171. The reversal of 11387145 is 54178311.

It is not a de Polignac number, because 11387145 - 2¹ = 11387143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11387143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3775 + ... + 6084.

It is an arithmetic number, because the mean of its divisors is an integer number (709920).

Almost surely, 2^11387145 is an apocalyptic number.

11387145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11387145 is a deficient number, since it is larger than the sum of its proper divisors (11330295).

11387145 is a wasteful number, since it uses less digits than its factorization.

11387145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9885.

The product of its digits is 3360, while the sum is 30.

The square root of 11387145 is about 3374.4844050610. The cubic root of 11387145 is about 224.9770840859.

The spelling of 11387145 in words is "eleven million, three hundred eighty-seven thousand, one hundred forty-five".