126785135 has 4 divisors (see below), whose sum is σ = 152142168. Its totient is φ = 101428104.

The previous prime is 126785123. The next prime is 126785147. The reversal of 126785135 is 531587621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531587621 = 37 ⋅14367233.

It is an interprime number because it is at equal distance from previous prime (126785123) and next prime (126785147).

It is a cyclic number.

It is not a de Polignac number, because 126785135 - 2¹⁰ = 126784111 is a prime.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12678509 + ... + 12678518.

It is an arithmetic number, because the mean of its divisors is an integer number (38035542).

Almost surely, 2^126785135 is an apocalyptic number.

126785135 is a deficient number, since it is larger than the sum of its proper divisors (25357033).

126785135 is an equidigital number, since it uses as much as digits as its factorization.

126785135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25357032.

The product of its digits is 50400, while the sum is 38.

The square root of 126785135 is about 11259.8905412086. The cubic root of 126785135 is about 502.3689385349.

The spelling of 126785135 in words is "one hundred twenty-six million, seven hundred eighty-five thousand, one hundred thirty-five".