120512136 has 64 divisors (see below), whose sum is σ = 323942400. Its totient is φ = 37240128.

The previous prime is 120512131. The next prime is 120512137. The reversal of 120512136 is 631215021.

It is not an unprimeable number, because it can be changed into a prime (120512131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18621 + ... + 24243.

It is an arithmetic number, because the mean of its divisors is an integer number (5061600).

Almost surely, 2^120512136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120512136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161971200).

120512136 is an abundant number, since it is smaller than the sum of its proper divisors (203430264).

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

120512136 is a wasteful number, since it uses less digits than its factorization.

120512136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5698 (or 5694 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 120512136 is about 10977.8019657853. The cubic root of 120512136 is about 493.9431056661.

Adding to 120512136 its reverse (631215021), we get a palindrome (751727157).

The spelling of 120512136 in words is "one hundred twenty million, five hundred twelve thousand, one hundred thirty-six".