125487489 has 8 divisors (see below), whose sum is σ = 177158880. Its totient is φ = 78737216.

The previous prime is 125487463. The next prime is 125487491. The reversal of 125487489 is 984784521.

It is a happy number.

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 125487489 - 2⁸ = 125487233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125487289) 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, 1230219 + ... + 1230320.

It is an arithmetic number, because the mean of its divisors is an integer number (22144860).

Almost surely, 2^125487489 is an apocalyptic number.

It is an amenable number.

125487489 is a deficient number, since it is larger than the sum of its proper divisors (51671391).

125487489 is a wasteful number, since it uses less digits than its factorization.

125487489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460559.

The product of its digits is 645120, while the sum is 48.

The square root of 125487489 is about 11202.1198440295. The cubic root of 125487489 is about 500.6491421974.

The spelling of 125487489 in words is "one hundred twenty-five million, four hundred eighty-seven thousand, four hundred eighty-nine".