126512633 has 8 divisors (see below), whose sum is σ = 136336200. Its totient is φ = 116702208.

The previous prime is 126512629. The next prime is 126512647. The reversal of 126512633 is 336215621.

It can be written as a sum of positive squares in 4 ways, for example, as 4012009 + 122500624 = 2003^2 + 11068^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126512633 - 2² = 126512629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126512596 and 126512605.

It is not an unprimeable number, because it can be changed into a prime (126512033) 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 7 ways as a sum of consecutive naturals, for example, 27353 + ... + 31641.

It is an arithmetic number, because the mean of its divisors is an integer number (17042025).

Almost surely, 2^126512633 is an apocalyptic number.

126512633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

126512633 is a deficient number, since it is larger than the sum of its proper divisors (9823567).

126512633 is a wasteful number, since it uses less digits than its factorization.

126512633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571.

The product of its digits is 6480, while the sum is 29.

The square root of 126512633 is about 11247.7834705332. The cubic root of 126512633 is about 502.0087629354.

The spelling of 126512633 in words is "one hundred twenty-six million, five hundred twelve thousand, six hundred thirty-three".