126705513 has 12 divisors (see below), whose sum is σ = 185695664. Its totient is φ = 76791000.

The previous prime is 126705511. The next prime is 126705529. The reversal of 126705513 is 315507621.

It is not a de Polignac number, because 126705513 - 2¹ = 126705511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126705511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174163 + ... + 174888.

Almost surely, 2^126705513 is an apocalyptic number.

It is an amenable number.

126705513 is a deficient number, since it is larger than the sum of its proper divisors (58990151).

126705513 is a wasteful number, since it uses less digits than its factorization.

126705513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349076 (or 349065 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 126705513 is about 11256.3543387724. The cubic root of 126705513 is about 502.2637527129.

The spelling of 126705513 in words is "one hundred twenty-six million, seven hundred five thousand, five hundred thirteen".