126752503 has 4 divisors (see below), whose sum is σ = 127915480. Its totient is φ = 125589528.

The previous prime is 126752447. The next prime is 126752539. The reversal of 126752503 is 305257621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126752503 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 (126752573) by changing a digit.

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, 581325 + ... + 581542.

It is an arithmetic number, because the mean of its divisors is an integer number (31978870).

Almost surely, 2^126752503 is an apocalyptic number.

126752503 is a deficient number, since it is larger than the sum of its proper divisors (1162977).

126752503 is a wasteful number, since it uses less digits than its factorization.

126752503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162976.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 126752503 is about 11258.4414107815. The cubic root of 126752503 is about 502.3258348754.

The spelling of 126752503 in words is "one hundred twenty-six million, seven hundred fifty-two thousand, five hundred three".