125769947 has 8 divisors (see below), whose sum is σ = 127566912. Its totient is φ = 123984000.

The previous prime is 125769929. The next prime is 125769967. The reversal of 125769947 is 749967521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125769947 - 2⁸ = 125769691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125769895 and 125769904.

It is not an unprimeable number, because it can be changed into a prime (125769907) 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, 21758 + ... + 26924.

It is an arithmetic number, because the mean of its divisors is an integer number (15945864).

Almost surely, 2^125769947 is an apocalyptic number.

125769947 is a deficient number, since it is larger than the sum of its proper divisors (1796965).

125769947 is a wasteful number, since it uses less digits than its factorization.

125769947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509.

The product of its digits is 952560, while the sum is 50.

The square root of 125769947 is about 11214.7201035068. The cubic root of 125769947 is about 501.0244953847.

The spelling of 125769947 in words is "one hundred twenty-five million, seven hundred sixty-nine thousand, nine hundred forty-seven".