120120136 has 8 divisors (see below), whose sum is σ = 225225270. Its totient is φ = 60060064.

The previous prime is 120120127. The next prime is 120120137. The reversal of 120120136 is 631021021.

It can be written as a sum of positive squares in only one way, i.e., 97022500 + 23097636 = 9850^2 + 4806^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (120120137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7507501 + ... + 7507516.

Almost surely, 2^120120136 is an apocalyptic number.

It is an amenable number.

120120136 is a deficient number, since it is larger than the sum of its proper divisors (105105134).

120120136 is a wasteful number, since it uses less digits than its factorization.

120120136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15015023 (or 15015019 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 120120136 is about 10959.9332114753. The cubic root of 120120136 is about 493.4069604419.

Adding to 120120136 its reverse (631021021), we get a palindrome (751141157).

The spelling of 120120136 in words is "one hundred twenty million, one hundred twenty thousand, one hundred thirty-six".