126251256382 has 4 divisors (see below), whose sum is σ = 189376884576. Its totient is φ = 63125628190.

The previous prime is 126251256367. The next prime is 126251256401. The reversal of 126251256382 is 283652152621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 283652152621 = 270157 ⋅1049953.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31562814094 + ... + 31562814097.

It is an arithmetic number, because the mean of its divisors is an integer number (47344221144).

Almost surely, 2^126251256382 is an apocalyptic number.

126251256382 is a deficient number, since it is larger than the sum of its proper divisors (63125628194).

126251256382 is an equidigital number, since it uses as much as digits as its factorization.

126251256382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63125628193.

The product of its digits is 345600, while the sum is 43.

The spelling of 126251256382 in words is "one hundred twenty-six billion, two hundred fifty-one million, two hundred fifty-six thousand, three hundred eighty-two".