12752042 has 4 divisors (see below), whose sum is σ = 19128066. Its totient is φ = 6376020.

The previous prime is 12752029. The next prime is 12752053. The reversal of 12752042 is 24025721.

It is a happy number.

It is a Cunningham number, because it is equal to 3571²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12752041 + 1 = 3571^2 + 1^2 .

It is a super-2 number, since 2×12752042² = 325229150339528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12751999 and 12752017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3188009 + ... + 3188012.

Almost surely, 2^12752042 is an apocalyptic number.

12752042 is a deficient number, since it is larger than the sum of its proper divisors (6376024).

12752042 is an equidigital number, since it uses as much as digits as its factorization.

12752042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6376023.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 12752042 is about 3571.0001400168. Note that the first 3 decimals coincide. The cubic root of 12752042 is about 233.6289075105.

Adding to 12752042 its reverse (24025721), we get a palindrome (36777763).

The spelling of 12752042 in words is "twelve million, seven hundred fifty-two thousand, forty-two".