12012757 has 8 divisors (see below), whose sum is σ = 12470040. Its totient is φ = 11558400.

The previous prime is 12012743. The next prime is 12012809. The reversal of 12012757 is 75721021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9006001 + 3006756 = 3001^2 + 1734^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12012757 - 2⁷ = 12012629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11113 + ... + 12145.

It is an arithmetic number, because the mean of its divisors is an integer number (1558755).

Almost surely, 2^12012757 is an apocalyptic number.

It is an amenable number.

12012757 is a deficient number, since it is larger than the sum of its proper divisors (457283).

12012757 is a wasteful number, since it uses less digits than its factorization.

12012757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 12012757 is about 3465.9424403761. The cubic root of 12012757 is about 229.0239482210.

Adding to 12012757 its reverse (75721021), we get a palindrome (87733778).

It can be divided in two parts, 12012 and 757, that added together give a square (12769 = 113²).

The spelling of 12012757 in words is "twelve million, twelve thousand, seven hundred fifty-seven".