12153789 has 12 divisors (see below), whose sum is σ = 17648956. Its totient is φ = 8059392.

The previous prime is 12153763. The next prime is 12153803. The reversal of 12153789 is 98735121.

It can be written as a sum of positive squares in 2 ways, for example, as 3404025 + 8749764 = 1845^2 + 2958^2 .

It is not a de Polignac number, because 12153789 - 2¹³ = 12145597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153719) 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, 1762 + ... + 5235.

Almost surely, 2^12153789 is an apocalyptic number.

It is an amenable number.

12153789 is a deficient number, since it is larger than the sum of its proper divisors (5495167).

12153789 is a wasteful number, since it uses less digits than its factorization.

12153789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7196 (or 7193 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 12153789 is about 3486.2284778827. The cubic root of 12153789 is about 229.9167247359.

The spelling of 12153789 in words is "twelve million, one hundred fifty-three thousand, seven hundred eighty-nine".