125662922281 has 8 divisors (see below), whose sum is σ = 135340566984. Its totient is φ = 115986887040.

The previous prime is 125662922279. The next prime is 125662922299. The reversal of 125662922281 is 182229266521.

It can be written as a sum of positive squares in 4 ways, for example, as 30269040400 + 95393881881 = 173980^2 + 308859^2 .

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 125662922281 - 2¹ = 125662922279 is a prime.

It is a super-2 number, since 2×125662922281² (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 (125662922681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237700 + ... + 554821.

It is an arithmetic number, because the mean of its divisors is an integer number (16917570873).

Almost surely, 2^125662922281 is an apocalyptic number.

It is an amenable number.

125662922281 is a deficient number, since it is larger than the sum of its proper divisors (9677644703).

125662922281 is a wasteful number, since it uses less digits than its factorization.

125662922281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804731.

The product of its digits is 414720, while the sum is 46.

The spelling of 125662922281 in words is "one hundred twenty-five billion, six hundred sixty-two million, nine hundred twenty-two thousand, two hundred eighty-one".