126539135 has 4 divisors (see below), whose sum is σ = 151846968. Its totient is φ = 101231304.

The previous prime is 126539059. The next prime is 126539137. The reversal of 126539135 is 531935621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126539135 - 2¹² = 126535039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126539095 and 126539104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126539137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12653909 + ... + 12653918.

It is an arithmetic number, because the mean of its divisors is an integer number (37961742).

Almost surely, 2^126539135 is an apocalyptic number.

126539135 is a deficient number, since it is larger than the sum of its proper divisors (25307833).

126539135 is an equidigital number, since it uses as much as digits as its factorization.

126539135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25307832.

The product of its digits is 24300, while the sum is 35.

The square root of 126539135 is about 11248.9615076237. The cubic root of 126539135 is about 502.0438142633.

The spelling of 126539135 in words is "one hundred twenty-six million, five hundred thirty-nine thousand, one hundred thirty-five".