126722521403 has 8 divisors (see below), whose sum is σ = 127070109600. Its totient is φ = 126375387840.

The previous prime is 126722521369. The next prime is 126722521417. The reversal of 126722521403 is 304125227621.

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 126722521403 - 2⁸ = 126722521147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126722521433) 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, 448373 + ... + 674153.

It is an arithmetic number, because the mean of its divisors is an integer number (15883763700).

Almost surely, 2^126722521403 is an apocalyptic number.

126722521403 is a deficient number, since it is larger than the sum of its proper divisors (347588197).

126722521403 is an equidigital number, since it uses as much as digits as its factorization.

126722521403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227317.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 126722521403 in words is "one hundred twenty-six billion, seven hundred twenty-two million, five hundred twenty-one thousand, four hundred three".