126005751 has 48 divisors (see below), whose sum is σ = 201670560. Its totient is φ = 75479040.

The previous prime is 126005743. The next prime is 126005773. The reversal of 126005751 is 157500621.

126005751 is a `hidden beast` number, since 1 + 2 + 600 + 5 + 7 + 51 = 666.

It is not a de Polignac number, because 126005751 - 2³ = 126005743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126005791) 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, 332280 + ... + 332658.

It is an arithmetic number, because the mean of its divisors is an integer number (4201470).

Almost surely, 2^126005751 is an apocalyptic number.

126005751 is a deficient number, since it is larger than the sum of its proper divisors (75664809).

126005751 is a wasteful number, since it uses less digits than its factorization.

126005751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 126005751 is about 11225.2283272992. The cubic root of 126005751 is about 501.3374207551.

It can be divided in two parts, 126005 and 751, that added together give a triangular number (126756 = T₅₀₃).

The spelling of 126005751 in words is "one hundred twenty-six million, five thousand, seven hundred fifty-one".