126651503 has 8 divisors (see below), whose sum is σ = 140772816. Its totient is φ = 112964800.

The previous prime is 126651493. The next prime is 126651517. The reversal of 126651503 is 305156621.

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 126651503 - 2⁸ = 126651247 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 (126651533) 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, 108038 + ... + 109203.

It is an arithmetic number, because the mean of its divisors is an integer number (17596602).

Almost surely, 2^126651503 is an apocalyptic number.

126651503 is a deficient number, since it is larger than the sum of its proper divisors (14121313).

126651503 is a wasteful number, since it uses less digits than its factorization.

126651503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217305.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 126651503 is about 11253.9549936900. The cubic root of 126651503 is about 502.1923769166.

The spelling of 126651503 in words is "one hundred twenty-six million, six hundred fifty-one thousand, five hundred three".