120781146 has 16 divisors (see below), whose sum is σ = 249355008. Its totient is φ = 38961600.

The previous prime is 120781127. The next prime is 120781151. The reversal of 120781146 is 641187021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324495 + ... + 324866.

It is an arithmetic number, because the mean of its divisors is an integer number (15584688).

Almost surely, 2^120781146 is an apocalyptic number.

120781146 is an abundant number, since it is smaller than the sum of its proper divisors (128573862).

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

120781146 is a wasteful number, since it uses less digits than its factorization.

120781146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649397.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 120781146 is about 10990.0475886140. The cubic root of 120781146 is about 494.3103629740.

The spelling of 120781146 in words is "one hundred twenty million, seven hundred eighty-one thousand, one hundred forty-six".