126355403503 has 8 divisors (see below), whose sum is σ = 144434046240. Its totient is φ = 108283728480.

The previous prime is 126355403483. The next prime is 126355403507. The reversal of 126355403503 is 305304553621.

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 126355403503 - 2²¹ = 126353306351 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 (126355403507) 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, 1703008 + ... + 1775653.

It is an arithmetic number, because the mean of its divisors is an integer number (18054255780).

Almost surely, 2^126355403503 is an apocalyptic number.

126355403503 is a deficient number, since it is larger than the sum of its proper divisors (18078642737).

126355403503 is an equidigital number, since it uses as much as digits as its factorization.

126355403503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483857.

The product of its (nonzero) digits is 162000, while the sum is 37.

The spelling of 126355403503 in words is "one hundred twenty-six billion, three hundred fifty-five million, four hundred three thousand, five hundred three".