125894159 has 4 divisors (see below), whose sum is σ = 126027216. Its totient is φ = 125761104.

The previous prime is 125894143. The next prime is 125894173. The reversal of 125894159 is 951498521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 951498521 = 41 ⋅23207281.

It is a cyclic number.

It is not a de Polignac number, because 125894159 - 2⁴ = 125894143 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125894759) 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, 65099 + ... + 67004.

It is an arithmetic number, because the mean of its divisors is an integer number (31506804).

Almost surely, 2^125894159 is an apocalyptic number.

125894159 is a deficient number, since it is larger than the sum of its proper divisors (133057).

125894159 is an equidigital number, since it uses as much as digits as its factorization.

125894159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133056.

The product of its digits is 129600, while the sum is 44.

The square root of 125894159 is about 11220.2566369936. The cubic root of 125894159 is about 501.1893805047.

The spelling of 125894159 in words is "one hundred twenty-five million, eight hundred ninety-four thousand, one hundred fifty-nine".