126535 has 4 divisors (see below), whose sum is σ = 151848. Its totient is φ = 101224.

The previous prime is 126517. The next prime is 126541. The reversal of 126535 is 535621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 535621 = 433 ⋅1237.

It is a cyclic number.

It is not a de Polignac number, because 126535 - 2⁹ = 126023 is a prime.

It is a super-2 number, since 2×126535² = 32022212450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12649 + ... + 12658.

It is an arithmetic number, because the mean of its divisors is an integer number (37962).

2¹²⁶⁵³⁵ is an apocalyptic number.

126535 is a deficient number, since it is larger than the sum of its proper divisors (25313).

126535 is an equidigital number, since it uses as much as digits as its factorization.

126535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25312.

The product of its digits is 900, while the sum is 22.

The square root of 126535 is about 355.7175846089. The cubic root of 126535 is about 50.2038345669.

The spelling of 126535 in words is "one hundred twenty-six thousand, five hundred thirty-five".