125822348081 has 4 divisors (see below), whose sum is σ = 133223662692. Its totient is φ = 118421033472.

The previous prime is 125822348077. The next prime is 125822348087. The reversal of 125822348081 is 180843228521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87725554225 + 38096793856 = 296185^2 + 195184^2 .

It is a cyclic number.

It is not a de Polignac number, because 125822348081 - 2² = 125822348077 is a prime.

It is a super-2 number, since 2×125822348081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125822348087) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3700657280 + ... + 3700657313.

It is an arithmetic number, because the mean of its divisors is an integer number (33305915673).

Almost surely, 2^125822348081 is an apocalyptic number.

It is an amenable number.

125822348081 is a deficient number, since it is larger than the sum of its proper divisors (7401314611).

125822348081 is an equidigital number, since it uses as much as digits as its factorization.

125822348081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401314610.

The product of its (nonzero) digits is 245760, while the sum is 44.

The spelling of 125822348081 in words is "one hundred twenty-five billion, eight hundred twenty-two million, three hundred forty-eight thousand, eighty-one".