125677145272 has 32 divisors (see below), whose sum is σ = 269320024800. Its totient is φ = 53859262464.

The previous prime is 125677145263. The next prime is 125677145273. The reversal of 125677145272 is 272541776521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125677145273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1950304 + ... + 2013712.

It is an arithmetic number, because the mean of its divisors is an integer number (8416250775).

Almost surely, 2^125677145272 is an apocalyptic number.

It is an amenable number.

125677145272 is an abundant number, since it is smaller than the sum of its proper divisors (143642879528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125677145272 is a wasteful number, since it uses less digits than its factorization.

125677145272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98815 (or 98811 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 49.

The spelling of 125677145272 in words is "one hundred twenty-five billion, six hundred seventy-seven million, one hundred forty-five thousand, two hundred seventy-two".