12045771 has 12 divisors (see below), whose sum is σ = 17770272. Its totient is φ = 7859376.

The previous prime is 12045769. The next prime is 12045773. The reversal of 12045771 is 17754021.

It is an interprime number because it is at equal distance from previous prime (12045769) and next prime (12045773).

It is not a de Polignac number, because 12045771 - 2¹ = 12045769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12045773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13816 + ... + 14661.

It is an arithmetic number, because the mean of its divisors is an integer number (1480856).

Almost surely, 2^12045771 is an apocalyptic number.

12045771 is a deficient number, since it is larger than the sum of its proper divisors (5724501).

12045771 is a wasteful number, since it uses less digits than its factorization.

12045771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28530 (or 28527 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 12045771 is about 3470.7018022296. The cubic root of 12045771 is about 229.2335609600.

Adding to 12045771 its reverse (17754021), we get a palindrome (29799792).

The spelling of 12045771 in words is "twelve million, forty-five thousand, seven hundred seventy-one".