126716445 has 48 divisors (see below), whose sum is σ = 226869552. Its totient is φ = 65387520.

The previous prime is 126716441. The next prime is 126716461. The reversal of 126716445 is 544617621.

126716445 is a `hidden beast` number, since 1 + 2 + 6 + 7 + 1 + 644 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 86436 + 126630009 = 294^2 + 11253^2 .

It is not a de Polignac number, because 126716445 - 2² = 126716441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126716441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 318987 + ... + 319383.

It is an arithmetic number, because the mean of its divisors is an integer number (4726449).

Almost surely, 2^126716445 is an apocalyptic number.

126716445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126716445 is a deficient number, since it is larger than the sum of its proper divisors (100153107).

126716445 is a wasteful number, since it uses less digits than its factorization.

126716445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 619 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 126716445 is about 11256.8399206882. The cubic root of 126716445 is about 502.2781972027.

The spelling of 126716445 in words is "one hundred twenty-six million, seven hundred sixteen thousand, four hundred forty-five".