126532505 has 8 divisors (see below), whose sum is σ = 165642624. Its totient is φ = 92023600.

The previous prime is 126532501. The next prime is 126532543. The reversal of 126532505 is 505235621.

It is a happy number.

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

It is not a de Polignac number, because 126532505 - 2² = 126532501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126532501) 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, 1150241 + ... + 1150350.

It is an arithmetic number, because the mean of its divisors is an integer number (20705328).

Almost surely, 2^126532505 is an apocalyptic number.

It is an amenable number.

126532505 is a deficient number, since it is larger than the sum of its proper divisors (39110119).

126532505 is a wasteful number, since it uses less digits than its factorization.

126532505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300607.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 126532505 is about 11248.6668098935. Note that the first 3 decimals coincide. The cubic root of 126532505 is about 502.0350459388.

The spelling of 126532505 in words is "one hundred twenty-six million, five hundred thirty-two thousand, five hundred five".