125422143256 has 8 divisors (see below), whose sum is σ = 235166518620. Its totient is φ = 62711071624.

The previous prime is 125422143179. The next prime is 125422143281. The reversal of 125422143256 is 652341224521.

It is a tau number, because it is divible by the number of its divisors (8).

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, 7838883946 + ... + 7838883961.

Almost surely, 2^125422143256 is an apocalyptic number.

It is an amenable number.

125422143256 is a deficient number, since it is larger than the sum of its proper divisors (109744375364).

125422143256 is a wasteful number, since it uses less digits than its factorization.

125422143256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15677767913 (or 15677767909 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

Adding to 125422143256 its reverse (652341224521), we get a palindrome (777763367777).

The spelling of 125422143256 in words is "one hundred twenty-five billion, four hundred twenty-two million, one hundred forty-three thousand, two hundred fifty-six".