126135503 has 8 divisors (see below), whose sum is σ = 136752000. Its totient is φ = 115649568.

The previous prime is 126135481. The next prime is 126135521. The reversal of 126135503 is 305531621.

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 126135503 - 2¹⁰ = 126134479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126135533) 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, 30623 + ... + 34496.

It is an arithmetic number, because the mean of its divisors is an integer number (17094000).

Almost surely, 2^126135503 is an apocalyptic number.

126135503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

126135503 is a deficient number, since it is larger than the sum of its proper divisors (10616497).

126135503 is a wasteful number, since it uses less digits than its factorization.

126135503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65281.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 126135503 is about 11231.0063217861. The cubic root of 126135503 is about 501.5094425807.

It can be divided in two parts, 12613550 and 3, that multiplied together give a triangular number (37840650 = T₈₆₉₉).

The spelling of 126135503 in words is "one hundred twenty-six million, one hundred thirty-five thousand, five hundred three".