126978803 has 8 divisors (see below), whose sum is σ = 145722720. Its totient is φ = 108385920.

The previous prime is 126978781. The next prime is 126978809. The reversal of 126978803 is 308879621.

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 126978803 - 2¹⁴ = 126962419 is a prime.

It is a super-2 number, since 2×126978803² = 32247232822625618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126978809) 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, 35948 + ... + 39321.

It is an arithmetic number, because the mean of its divisors is an integer number (18215340).

Almost surely, 2^126978803 is an apocalyptic number.

126978803 is a deficient number, since it is larger than the sum of its proper divisors (18743917).

126978803 is an equidigital number, since it uses as much as digits as its factorization.

126978803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75517.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 126978803 is about 11268.4871655427. The cubic root of 126978803 is about 502.6246028139.

The spelling of 126978803 in words is "one hundred twenty-six million, nine hundred seventy-eight thousand, eight hundred three".