11207145 has 16 divisors (see below), whose sum is σ = 18369792. Its totient is φ = 5831040.

The previous prime is 11207129. The next prime is 11207149. The reversal of 11207145 is 54170211.

It is a happy number.

It is not a de Polignac number, because 11207145 - 2⁴ = 11207129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11207149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8497 + ... + 9726.

It is an arithmetic number, because the mean of its divisors is an integer number (1148112).

Almost surely, 2^11207145 is an apocalyptic number.

11207145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11207145 is a deficient number, since it is larger than the sum of its proper divisors (7162647).

11207145 is a wasteful number, since it uses less digits than its factorization.

11207145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18272.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 11207145 is about 3347.7074244922. The cubic root of 11207145 is about 223.7853558769.

Adding to 11207145 its reverse (54170211), we get a palindrome (65377356).

The spelling of 11207145 in words is "eleven million, two hundred seven thousand, one hundred forty-five".