125769766 has 4 divisors (see below), whose sum is σ = 188654652. Its totient is φ = 62884882.

The previous prime is 125769737. The next prime is 125769767. The reversal of 125769766 is 667967521.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125769767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31442440 + ... + 31442443.

It is an arithmetic number, because the mean of its divisors is an integer number (47163663).

Almost surely, 2^125769766 is an apocalyptic number.

125769766 is a deficient number, since it is larger than the sum of its proper divisors (62884886).

125769766 is an equidigital number, since it uses as much as digits as its factorization.

125769766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62884885.

The product of its digits is 952560, while the sum is 49.

The square root of 125769766 is about 11214.7120337528. The cubic root of 125769766 is about 501.0242550372.

The spelling of 125769766 in words is "one hundred twenty-five million, seven hundred sixty-nine thousand, seven hundred sixty-six".