11071645 has 16 divisors (see below), whose sum is σ = 14555520. Its totient is φ = 8034624.

The previous prime is 11071631. The next prime is 11071663. The reversal of 11071645 is 54617011.

It is a happy number.

11071645 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 11071645 - 2⁹ = 11071133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2392 + ... + 5278.

It is an arithmetic number, because the mean of its divisors is an integer number (909720).

Almost surely, 2^11071645 is an apocalyptic number.

It is an amenable number.

11071645 is a deficient number, since it is larger than the sum of its proper divisors (3483875).

11071645 is a wasteful number, since it uses less digits than its factorization.

11071645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 11071645 is about 3327.4081504979. The cubic root of 11071645 is about 222.8798041160.

Adding to 11071645 its reverse (54617011), we get a palindrome (65688656).

The spelling of 11071645 in words is "eleven million, seventy-one thousand, six hundred forty-five".