126444452 has 6 divisors (see below), whose sum is σ = 221277798. Its totient is φ = 63222224.

The previous prime is 126444431. The next prime is 126444457. The reversal of 126444452 is 254444621.

It can be written as a sum of positive squares in only one way, i.e., 115047076 + 11397376 = 10726^2 + 3376^2 .

It is not an unprimeable number, because it can be changed into a prime (126444457) 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, 15805553 + ... + 15805560.

It is an arithmetic number, because the mean of its divisors is an integer number (36879633).

Almost surely, 2^126444452 is an apocalyptic number.

It is an amenable number.

126444452 is a deficient number, since it is larger than the sum of its proper divisors (94833346).

126444452 is a wasteful number, since it uses less digits than its factorization.

126444452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31611117 (or 31611115 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

The square root of 126444452 is about 11244.7521982479. The cubic root of 126444452 is about 501.9185648022.

The spelling of 126444452 in words is "one hundred twenty-six million, four hundred forty-four thousand, four hundred fifty-two".