120136530 has 32 divisors (see below), whose sum is σ = 290980800. Its totient is φ = 31741632.

The previous prime is 120136507. The next prime is 120136547. The reversal of 120136530 is 35631021.

It is a junction number, because it is equal to n+sod(n) for n = 120136497 and 120136506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15100 + ... + 21639.

It is an arithmetic number, because the mean of its divisors is an integer number (9093150).

Almost surely, 2^120136530 is an apocalyptic number.

120136530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120136530 is an abundant number, since it is smaller than the sum of its proper divisors (170844270).

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

120136530 is a wasteful number, since it uses less digits than its factorization.

120136530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36858.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 120136530 is about 10960.6810919760. The cubic root of 120136530 is about 493.4294061534.

Adding to 120136530 its reverse (35631021), we get a palindrome (155767551).

The spelling of 120136530 in words is "one hundred twenty million, one hundred thirty-six thousand, five hundred thirty".