118481540 has 24 divisors (see below), whose sum is σ = 249027072. Its totient is φ = 47351520.

The previous prime is 118481537. The next prime is 118481543. The reversal of 118481540 is 45184811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (118481537) and next prime (118481543).

It is a junction number, because it is equal to n+sod(n) for n = 118481497 and 118481506.

It is not an unprimeable number, because it can be changed into a prime (118481543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33245 + ... + 36635.

It is an arithmetic number, because the mean of its divisors is an integer number (10376128).

Almost surely, 2^118481540 is an apocalyptic number.

118481540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118481540 is an abundant number, since it is smaller than the sum of its proper divisors (130545532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118481540 is a wasteful number, since it uses less digits than its factorization.

118481540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147 (or 5145 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 118481540 is about 10884.9225996329. The cubic root of 118481540 is about 491.1531082446.

The spelling of 118481540 in words is "one hundred eighteen million, four hundred eighty-one thousand, five hundred forty".