126401633139 has 8 divisors (see below), whose sum is σ = 168538550272. Its totient is φ = 84266235720.

The previous prime is 126401633047. The next prime is 126401633177. The reversal of 126401633139 is 931336104621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126401633139 - 2⁸ = 126401632883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126401633097 and 126401633106.

It is not an unprimeable number, because it can be changed into a prime (126401683139) 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, 169147 + ... + 530484.

It is an arithmetic number, because the mean of its divisors is an integer number (21067318784).

Almost surely, 2^126401633139 is an apocalyptic number.

126401633139 is a deficient number, since it is larger than the sum of its proper divisors (42136917133).

126401633139 is an equidigital number, since it uses as much as digits as its factorization.

126401633139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759857.

The product of its (nonzero) digits is 69984, while the sum is 39.

The spelling of 126401633139 in words is "one hundred twenty-six billion, four hundred one million, six hundred thirty-three thousand, one hundred thirty-nine".