120136040 has 32 divisors (see below), whose sum is σ = 277615080. Its totient is φ = 46755072.

The previous prime is 120136021. The next prime is 120136043. The reversal of 120136040 is 40631021.

It can be written as a sum of positive squares in 4 ways, for example, as 104816644 + 15319396 = 10238^2 + 3914^2 .

It is not an unprimeable number, because it can be changed into a prime (120136043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39107 + ... + 42066.

Almost surely, 2^120136040 is an apocalyptic number.

120136040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120136040 is an abundant number, since it is smaller than the sum of its proper divisors (157479040).

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

120136040 is a wasteful number, since it uses less digits than its factorization.

120136040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81221 (or 81217 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 120136040 is about 10960.6587393277. The cubic root of 120136040 is about 493.4287353035.

Adding to 120136040 its reverse (40631021), we get a palindrome (160767061).

The spelling of 120136040 in words is "one hundred twenty million, one hundred thirty-six thousand, forty".