125805747 has 8 divisors (see below), whose sum is σ = 167864256. Its totient is φ = 83808872.

The previous prime is 125805739. The next prime is 125805749. The reversal of 125805747 is 747508521.

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 125805747 - 2³ = 125805739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125805749) 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, 10413 + ... + 18974.

It is an arithmetic number, because the mean of its divisors is an integer number (20983032).

Almost surely, 2^125805747 is an apocalyptic number.

125805747 is a deficient number, since it is larger than the sum of its proper divisors (42058509).

125805747 is a wasteful number, since it uses less digits than its factorization.

125805747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30817.

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 125805747 is about 11216.3161064585. The cubic root of 125805747 is about 501.0720291974.

The spelling of 125805747 in words is "one hundred twenty-five million, eight hundred five thousand, seven hundred forty-seven".