125748261 has 8 divisors (see below), whose sum is σ = 186293760. Its totient is φ = 83832156.

The previous prime is 125748253. The next prime is 125748283. The reversal of 125748261 is 162847521.

125748261 is a `hidden beast` number, since 1 + 2 + 574 + 82 + 6 + 1 = 666.

It is not a de Polignac number, because 125748261 - 2³ = 125748253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125748221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2328645 + ... + 2328698.

It is an arithmetic number, because the mean of its divisors is an integer number (23286720).

Almost surely, 2^125748261 is an apocalyptic number.

It is an amenable number.

125748261 is a deficient number, since it is larger than the sum of its proper divisors (60545499).

125748261 is an equidigital number, since it uses as much as digits as its factorization.

125748261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657352 (or 4657346 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 125748261 is about 11213.7532075572. The cubic root of 125748261 is about 500.9956971913.

The spelling of 125748261 in words is "one hundred twenty-five million, seven hundred forty-eight thousand, two hundred sixty-one".