126705506 has 16 divisors (see below), whose sum is σ = 191528064. Its totient is φ = 62865264.

The previous prime is 126705503. The next prime is 126705511. The reversal of 126705506 is 605507621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (126705503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271085 + ... + 271551.

It is an arithmetic number, because the mean of its divisors is an integer number (11970504).

Almost surely, 2^126705506 is an apocalyptic number.

126705506 is a deficient number, since it is larger than the sum of its proper divisors (64822558).

126705506 is a wasteful number, since it uses less digits than its factorization.

126705506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 126705506 is about 11256.3540278369. The cubic root of 126705506 is about 502.2637434636.

The spelling of 126705506 in words is "one hundred twenty-six million, seven hundred five thousand, five hundred six".