125456323271705 has 24 divisors (see below), whose sum is σ = 164711243700936. Its totient is φ = 91414095075840.

The previous prime is 125456323271681. The next prime is 125456323271753. The reversal of 125456323271705 is 507172323654521.

It can be written as a sum of positive squares in 4 ways, for example, as 2741683574809 + 122714639696896 = 1655803^2 + 11077664^2 .

It is not a de Polignac number, because 125456323271705 - 2¹⁶ = 125456323206169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 767845862 + ... + 768009231.

It is an arithmetic number, because the mean of its divisors is an integer number (6862968487539).

Almost surely, 2^{125456323271705} is an apocalyptic number.

It is an amenable number.

125456323271705 is a deficient number, since it is larger than the sum of its proper divisors (39254920429231).

125456323271705 is a wasteful number, since it uses less digits than its factorization.

125456323271705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535855177 (or 1535855146 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 53.

The spelling of 125456323271705 in words is "one hundred twenty-five trillion, four hundred fifty-six billion, three hundred twenty-three million, two hundred seventy-one thousand, seven hundred five".