12942765 has 36 divisors (see below), whose sum is σ = 24669372. Its totient is φ = 6272640.

The previous prime is 12942751. The next prime is 12942791. The reversal of 12942765 is 56724921.

12942765 = T₁₃₄ + T₁₃₅ + ... + T₄₃₀.

It can be written as a sum of positive squares in 2 ways, for example, as 4888521 + 8054244 = 2211^2 + 2838^2 .

It is not a de Polignac number, because 12942765 - 2⁶ = 12942701 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4257 + ... + 6633.

Almost surely, 2^12942765 is an apocalyptic number.

12942765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12942765 is a deficient number, since it is larger than the sum of its proper divisors (11726607).

12942765 is a wasteful number, since it uses less digits than its factorization.

12942765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410 (or 2396 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 12942765 is about 3597.6054536316. The cubic root of 12942765 is about 234.7878876743.

The spelling of 12942765 in words is "twelve million, nine hundred forty-two thousand, seven hundred sixty-five".