118425487 has 4 divisors (see below), whose sum is σ = 122245696. Its totient is φ = 114605280.

The previous prime is 118425443. The next prime is 118425521. The reversal of 118425487 is 784524811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784524811 = 7 ⋅112074973.

It is a cyclic number.

It is not a de Polignac number, because 118425487 - 2¹⁵ = 118392719 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 (118425407) 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, 1910058 + ... + 1910119.

It is an arithmetic number, because the mean of its divisors is an integer number (30561424).

Almost surely, 2^118425487 is an apocalyptic number.

118425487 is a deficient number, since it is larger than the sum of its proper divisors (3820209).

118425487 is an equidigital number, since it uses as much as digits as its factorization.

118425487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820208.

The product of its digits is 71680, while the sum is 40.

The square root of 118425487 is about 10882.3474949112. The cubic root of 118425487 is about 491.0756420338.

The spelling of 118425487 in words is "one hundred eighteen million, four hundred twenty-five thousand, four hundred eighty-seven".