12071553 has 16 divisors (see below), whose sum is σ = 17517696. Its totient is φ = 7349760.

The previous prime is 12071537. The next prime is 12071557. The reversal of 12071553 is 35517021.

12071553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12071553 - 2⁴ = 12071537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12071557) 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, 2188 + ... + 5378.

It is an arithmetic number, because the mean of its divisors is an integer number (1094856).

Almost surely, 2^12071553 is an apocalyptic number.

12071553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12071553 is a deficient number, since it is larger than the sum of its proper divisors (5446143).

12071553 is a wasteful number, since it uses less digits than its factorization.

12071553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 12071553 is about 3474.4140513186. The cubic root of 12071553 is about 229.3969900490.

Adding to 12071553 its reverse (35517021), we get a palindrome (47588574).

The spelling of 12071553 in words is "twelve million, seventy-one thousand, five hundred fifty-three".