125989247 has 8 divisors (see below), whose sum is σ = 132731760. Its totient is φ = 119257920.

The previous prime is 125989243. The next prime is 125989271. The reversal of 125989247 is 742989521.

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 125989247 - 2² = 125989243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125989243) 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, 30773 + ... + 34625.

It is an arithmetic number, because the mean of its divisors is an integer number (16591470).

Almost surely, 2^125989247 is an apocalyptic number.

125989247 is a deficient number, since it is larger than the sum of its proper divisors (6742513).

125989247 is a wasteful number, since it uses less digits than its factorization.

125989247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5593.

The product of its digits is 362880, while the sum is 47.

The square root of 125989247 is about 11224.4931734132. The cubic root of 125989247 is about 501.3155317170.

The spelling of 125989247 in words is "one hundred twenty-five million, nine hundred eighty-nine thousand, two hundred forty-seven".