125748851 has 4 divisors (see below), whose sum is σ = 127471512. Its totient is φ = 124026192.

The previous prime is 125748827. The next prime is 125748869. The reversal of 125748851 is 158847521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125748851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125748799 and 125748808.

It is not an unprimeable number, because it can be changed into a prime (125748811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861221 + ... + 861366.

It is an arithmetic number, because the mean of its divisors is an integer number (31867878).

Almost surely, 2^125748851 is an apocalyptic number.

125748851 is a deficient number, since it is larger than the sum of its proper divisors (1722661).

125748851 is an equidigital number, since it uses as much as digits as its factorization.

125748851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722660.

The product of its digits is 89600, while the sum is 41.

The square root of 125748851 is about 11213.7795145080. The cubic root of 125748851 is about 500.9964807330.

The spelling of 125748851 in words is "one hundred twenty-five million, seven hundred forty-eight thousand, eight hundred fifty-one".