126406052 has 6 divisors (see below), whose sum is σ = 221210598. Its totient is φ = 63203024.

The previous prime is 126406051. The next prime is 126406061. The reversal of 126406052 is 250604621.

It can be written as a sum of positive squares in only one way, i.e., 124902976 + 1503076 = 11176^2 + 1226^2 .

It is a super-3 number, since 3×126406052³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (126406051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15800753 + ... + 15800760.

It is an arithmetic number, because the mean of its divisors is an integer number (36868433).

Almost surely, 2^126406052 is an apocalyptic number.

It is an amenable number.

126406052 is a deficient number, since it is larger than the sum of its proper divisors (94804546).

126406052 is a wasteful number, since it uses less digits than its factorization.

126406052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31601517 (or 31601515 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 126406052 is about 11243.0446054438. The cubic root of 126406052 is about 501.8677503299.

The spelling of 126406052 in words is "one hundred twenty-six million, four hundred six thousand, fifty-two".