125869845 has 8 divisors (see below), whose sum is σ = 201391776. Its totient is φ = 67130576.

The previous prime is 125869789. The next prime is 125869847. The reversal of 125869845 is 548968521.

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 125869845 - 2⁹ = 125869333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125869794 and 125869803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125869847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4195647 + ... + 4195676.

It is an arithmetic number, because the mean of its divisors is an integer number (25173972).

Almost surely, 2^125869845 is an apocalyptic number.

125869845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125869845 is a deficient number, since it is larger than the sum of its proper divisors (75521931).

125869845 is an equidigital number, since it uses as much as digits as its factorization.

125869845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8391331.

The product of its digits is 691200, while the sum is 48.

The square root of 125869845 is about 11219.1730978713. The cubic root of 125869845 is about 501.1571134446.

The spelling of 125869845 in words is "one hundred twenty-five million, eight hundred sixty-nine thousand, eight hundred forty-five".