125493689 has 8 divisors (see below), whose sum is σ = 132384000. Its totient is φ = 118631952.

The previous prime is 125493671. The next prime is 125493749. The reversal of 125493689 is 986394521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125493689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125493659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2207 + ... + 15995.

It is an arithmetic number, because the mean of its divisors is an integer number (16548000).

Almost surely, 2^125493689 is an apocalyptic number.

125493689 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

125493689 is a deficient number, since it is larger than the sum of its proper divisors (6890311).

125493689 is a wasteful number, since it uses less digits than its factorization.

125493689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287.

The product of its digits is 466560, while the sum is 47.

The square root of 125493689 is about 11202.3965739479. The cubic root of 125493689 is about 500.6573873051.

The spelling of 125493689 in words is "one hundred twenty-five million, four hundred ninety-three thousand, six hundred eighty-nine".